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Finding the Fourth Proportional to 136,737.93, 205,105.96 and 73,587.76

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Solution

The fourth proportional to 136,737.93, 205,105.96 and 73,587.76 is: 110,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,737.93 : 205,105.96 = 73,587.76 : x
  2. Step 2: Convert to fraction form
    136,737.93/205,105.96 = 73,587.76/x
  3. Step 3: Cross multiply
    136,737.93x = 205,105.96 × 73,587.76
  4. Step 4: Simplify right side
    136,737.93x = 15,093,288,159.05
  5. Step 5: Solve for x
    x = 15,093,288,159.05/136,737.93
  6. Step 6: Final answer
    x = 110,381.14

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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.