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Finding the Fourth Proportional to 133,166.43, 183,769.47 and 72,737.07

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Solution

The fourth proportional to 133,166.43, 183,769.47 and 72,737.07 is: 100,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,166.43 : 183,769.47 = 72,737.07 : x
  2. Step 2: Convert to fraction form
    133,166.43/183,769.47 = 72,737.07/x
  3. Step 3: Cross multiply
    133,166.43x = 183,769.47 × 72,737.07
  4. Step 4: Simplify right side
    133,166.43x = 13,366,852,898.99
  5. Step 5: Solve for x
    x = 13,366,852,898.99/133,166.43
  6. Step 6: Final answer
    x = 100,377.05

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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.