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Finding the Fourth Proportional to 133,177.52, 183,777.95 and 72,747.29

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Solution

The fourth proportional to 133,177.52, 183,777.95 and 72,747.29 is: 100,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,177.52 : 183,777.95 = 72,747.29 : x
  2. Step 2: Convert to fraction form
    133,177.52/183,777.95 = 72,747.29/x
  3. Step 3: Cross multiply
    133,177.52x = 183,777.95 × 72,747.29
  4. Step 4: Simplify right side
    133,177.52x = 13,369,348,465.57
  5. Step 5: Solve for x
    x = 13,369,348,465.57/133,177.52
  6. Step 6: Final answer
    x = 100,387.42

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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.