Home / 156,720.40-235,115.16-51,535.12

Finding the Fourth Proportional to 156,720.40, 235,115.16 and 51,535.12

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Solution

The fourth proportional to 156,720.40, 235,115.16 and 51,535.12 is: 77,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,720.40 : 235,115.16 = 51,535.12 : x
  2. Step 2: Convert to fraction form
    156,720.40/235,115.16 = 51,535.12/x
  3. Step 3: Cross multiply
    156,720.40x = 235,115.16 × 51,535.12
  4. Step 4: Simplify right side
    156,720.40x = 12,116,687,984.42
  5. Step 5: Solve for x
    x = 12,116,687,984.42/156,720.40
  6. Step 6: Final answer
    x = 77,314.04

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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.