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Finding the Fourth Proportional to 125,088.57, 187,680.95 and 75,203.10

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Solution

The fourth proportional to 125,088.57, 187,680.95 and 75,203.10 is: 112,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,088.57 : 187,680.95 = 75,203.10 : x
  2. Step 2: Convert to fraction form
    125,088.57/187,680.95 = 75,203.10/x
  3. Step 3: Cross multiply
    125,088.57x = 187,680.95 × 75,203.10
  4. Step 4: Simplify right side
    125,088.57x = 14,114,189,250.95
  5. Step 5: Solve for x
    x = 14,114,189,250.95/125,088.57
  6. Step 6: Final answer
    x = 112,833.56

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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.