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Finding the Fourth Proportional to 119,645.01, 165,121.74 and 89,377.79

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Solution

The fourth proportional to 119,645.01, 165,121.74 and 89,377.79 is: 123,350.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,645.01 : 165,121.74 = 89,377.79 : x
  2. Step 2: Convert to fraction form
    119,645.01/165,121.74 = 89,377.79/x
  3. Step 3: Cross multiply
    119,645.01x = 165,121.74 × 89,377.79
  4. Step 4: Simplify right side
    119,645.01x = 14,758,215,376.55
  5. Step 5: Solve for x
    x = 14,758,215,376.55/119,645.01
  6. Step 6: Final answer
    x = 123,350.03

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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.