Home / 179,400-247,572-99,912

Finding the Fourth Proportional to 179,400, 247,572 and 99,912

Calculator

Solution

The fourth proportional to 179,400, 247,572 and 99,912 is: 137,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,400 : 247,572 = 99,912 : x
  2. Step 2: Convert to fraction form
    179,400/247,572 = 99,912/x
  3. Step 3: Cross multiply
    179,400x = 247,572 × 99,912
  4. Step 4: Simplify right side
    179,400x = 24,735,413,664
  5. Step 5: Solve for x
    x = 24,735,413,664/179,400
  6. Step 6: Final answer
    x = 137,878.56

Related Problems

Find fourth proportional to 89,700, 123,786 and 49,956
Half scale
Find fourth proportional to 358,800, 495,144 and 199,824
Double scale
Find fourth proportional to 179,401, 247,573.38 and 99,913
Similar ratio
Find fourth proportional to 269,100, 371,358 and 149,868
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.