Home / 124,728.10-187,092.15-74,961.70

Finding the Fourth Proportional to 124,728.10, 187,092.15 and 74,961.70

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Solution

The fourth proportional to 124,728.10, 187,092.15 and 74,961.70 is: 112,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,728.10 : 187,092.15 = 74,961.70 : x
  2. Step 2: Convert to fraction form
    124,728.10/187,092.15 = 74,961.70/x
  3. Step 3: Cross multiply
    124,728.10x = 187,092.15 × 74,961.70
  4. Step 4: Simplify right side
    124,728.10x = 14,024,745,620.66
  5. Step 5: Solve for x
    x = 14,024,745,620.66/124,728.10
  6. Step 6: Final answer
    x = 112,442.55

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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.