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Finding the Fourth Proportional to 129,744.56, 179,148.84 and 101,530.64

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Solution

The fourth proportional to 129,744.56, 179,148.84 and 101,530.64 is: 140,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,744.56 : 179,148.84 = 101,530.64 : x
  2. Step 2: Convert to fraction form
    129,744.56/179,148.84 = 101,530.64/x
  3. Step 3: Cross multiply
    129,744.56x = 179,148.84 × 101,530.64
  4. Step 4: Simplify right side
    129,744.56x = 18,189,096,380.46
  5. Step 5: Solve for x
    x = 18,189,096,380.46/129,744.56
  6. Step 6: Final answer
    x = 140,191.59

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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.