Home / 85,421-127,438.50

Finding the Third Proportional to 85,421 and 127,438.50

Calculator

Solution

The third proportional to 85,421 and 127,438.50 is: 190,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,421 : 127,438.50 = 127,438.50 : x
  2. Step 2: Convert to fraction form
    85,421/127,438.50 = 127,438.50/x
  3. Step 3: Cross multiply
    85,421x = 127,438.50 × 127,438.50
  4. Step 4: Simplify right side
    85,421x = 16,240,571,282.25
  5. Step 5: Solve for x
    x = 16,240,571,282.25/85,421
  6. Step 6: Final answer
    x = 190,123.87

Related Problems

Find third proportional to 42,710.50 and 63,719.25
Half scale
Find third proportional to 170,842 and 254,877
Double scale
Find third proportional to 85,423 and 127,441
Similar ratio
Find third proportional to 128,131.50 and 191,157.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.