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Finding the Fourth Proportional to 133,151.38, 183,747.93 and 72,722.04

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Solution

The fourth proportional to 133,151.38, 183,747.93 and 72,722.04 is: 100,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,151.38 : 183,747.93 = 72,722.04 : x
  2. Step 2: Convert to fraction form
    133,151.38/183,747.93 = 72,722.04/x
  3. Step 3: Cross multiply
    133,151.38x = 183,747.93 × 72,722.04
  4. Step 4: Simplify right side
    133,151.38x = 13,362,523,353.61
  5. Step 5: Solve for x
    x = 13,362,523,353.61/133,151.38
  6. Step 6: Final answer
    x = 100,355.88

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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.