Home / 124,842.10-187,380.60-65,720.20

Finding the Fourth Proportional to 124,842.10, 187,380.60 and 65,720.20

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Solution

The fourth proportional to 124,842.10, 187,380.60 and 65,720.20 is: 98,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,842.10 : 187,380.60 = 65,720.20 : x
  2. Step 2: Convert to fraction form
    124,842.10/187,380.60 = 65,720.20/x
  3. Step 3: Cross multiply
    124,842.10x = 187,380.60 × 65,720.20
  4. Step 4: Simplify right side
    124,842.10x = 12,314,690,508.12
  5. Step 5: Solve for x
    x = 12,314,690,508.12/124,842.10
  6. Step 6: Final answer
    x = 98,642.13

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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.