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Finding the Fourth Proportional to 109,751.73, 151,468.61 and 79,150.11

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Solution

The fourth proportional to 109,751.73, 151,468.61 and 79,150.11 is: 109,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,751.73 : 151,468.61 = 79,150.11 : x
  2. Step 2: Convert to fraction form
    109,751.73/151,468.61 = 79,150.11/x
  3. Step 3: Cross multiply
    109,751.73x = 151,468.61 × 79,150.11
  4. Step 4: Simplify right side
    109,751.73x = 11,988,756,747.30
  5. Step 5: Solve for x
    x = 11,988,756,747.30/109,751.73
  6. Step 6: Final answer
    x = 109,235.24

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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.