Home / 126,023.92-173,938.12-72,345.20

Finding the Fourth Proportional to 126,023.92, 173,938.12 and 72,345.20

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Solution

The fourth proportional to 126,023.92, 173,938.12 and 72,345.20 is: 99,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,023.92 : 173,938.12 = 72,345.20 : x
  2. Step 2: Convert to fraction form
    126,023.92/173,938.12 = 72,345.20/x
  3. Step 3: Cross multiply
    126,023.92x = 173,938.12 × 72,345.20
  4. Step 4: Simplify right side
    126,023.92x = 12,583,588,079.02
  5. Step 5: Solve for x
    x = 12,583,588,079.02/126,023.92
  6. Step 6: Final answer
    x = 99,850.79

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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.