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Finding the Fourth Proportional to 123,553.39, 185,263.47 and 66,657.79

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Solution

The fourth proportional to 123,553.39, 185,263.47 and 66,657.79 is: 99,950.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,553.39 : 185,263.47 = 66,657.79 : x
  2. Step 2: Convert to fraction form
    123,553.39/185,263.47 = 66,657.79/x
  3. Step 3: Cross multiply
    123,553.39x = 185,263.47 × 66,657.79
  4. Step 4: Simplify right side
    123,553.39x = 12,349,253,477.93
  5. Step 5: Solve for x
    x = 12,349,253,477.93/123,553.39
  6. Step 6: Final answer
    x = 99,950.75

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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.