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Finding the Fourth Proportional to 129,923.70, 179,294.70 and 73,338.72

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Solution

The fourth proportional to 129,923.70, 179,294.70 and 73,338.72 is: 101,207.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,923.70 : 179,294.70 = 73,338.72 : x
  2. Step 2: Convert to fraction form
    129,923.70/179,294.70 = 73,338.72/x
  3. Step 3: Cross multiply
    129,923.70x = 179,294.70 × 73,338.72
  4. Step 4: Simplify right side
    129,923.70x = 13,149,243,800.78
  5. Step 5: Solve for x
    x = 13,149,243,800.78/129,923.70
  6. Step 6: Final answer
    x = 101,207.43

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1.5x scale

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.