Home / 123,134.16-169,925.13-66,545.54

Finding the Fourth Proportional to 123,134.16, 169,925.13 and 66,545.54

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Solution

The fourth proportional to 123,134.16, 169,925.13 and 66,545.54 is: 91,832.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,134.16 : 169,925.13 = 66,545.54 : x
  2. Step 2: Convert to fraction form
    123,134.16/169,925.13 = 66,545.54/x
  3. Step 3: Cross multiply
    123,134.16x = 169,925.13 × 66,545.54
  4. Step 4: Simplify right side
    123,134.16x = 11,307,758,685.79
  5. Step 5: Solve for x
    x = 11,307,758,685.79/123,134.16
  6. Step 6: Final answer
    x = 91,832.83

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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.