Home / 299,703-449,554.50-78,087

Finding the Fourth Proportional to 299,703, 449,554.50 and 78,087

Calculator

Solution

The fourth proportional to 299,703, 449,554.50 and 78,087 is: 117,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,703 : 449,554.50 = 78,087 : x
  2. Step 2: Convert to fraction form
    299,703/449,554.50 = 78,087/x
  3. Step 3: Cross multiply
    299,703x = 449,554.50 × 78,087
  4. Step 4: Simplify right side
    299,703x = 35,104,362,241.50
  5. Step 5: Solve for x
    x = 35,104,362,241.50/299,703
  6. Step 6: Final answer
    x = 117,130.50

Related Problems

Find fourth proportional to 149,851.50, 224,777.25 and 39,043.50
Half scale
Find fourth proportional to 599,406, 899,109 and 156,174
Double scale
Find fourth proportional to 299,704, 449,556 and 78,088
Similar ratio
Find fourth proportional to 449,554.50, 674,331.75 and 117,130.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.