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Finding the Fourth Proportional to 129,894, 179,253.84 and 73,304.16

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Solution

The fourth proportional to 129,894, 179,253.84 and 73,304.16 is: 101,159.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,894 : 179,253.84 = 73,304.16 : x
  2. Step 2: Convert to fraction form
    129,894/179,253.84 = 73,304.16/x
  3. Step 3: Cross multiply
    129,894x = 179,253.84 × 73,304.16
  4. Step 4: Simplify right side
    129,894x = 13,140,052,167.97
  5. Step 5: Solve for x
    x = 13,140,052,167.97/129,894
  6. Step 6: Final answer
    x = 101,159.81

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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.