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Finding the Fourth Proportional to 133,166.90, 183,769.08 and 72,737.52

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Solution

The fourth proportional to 133,166.90, 183,769.08 and 72,737.52 is: 100,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,166.90 : 183,769.08 = 72,737.52 : x
  2. Step 2: Convert to fraction form
    133,166.90/183,769.08 = 72,737.52/x
  3. Step 3: Cross multiply
    133,166.90x = 183,769.08 × 72,737.52
  4. Step 4: Simplify right side
    133,166.90x = 13,366,907,131.88
  5. Step 5: Solve for x
    x = 13,366,907,131.88/133,166.90
  6. Step 6: Final answer
    x = 100,377.10

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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.