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Finding the Fourth Proportional to 129,748.32, 179,052.36 and 73,159.32

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Solution

The fourth proportional to 129,748.32, 179,052.36 and 73,159.32 is: 100,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,748.32 : 179,052.36 = 73,159.32 : x
  2. Step 2: Convert to fraction form
    129,748.32/179,052.36 = 73,159.32/x
  3. Step 3: Cross multiply
    129,748.32x = 179,052.36 × 73,159.32
  4. Step 4: Simplify right side
    129,748.32x = 13,099,348,902.00
  5. Step 5: Solve for x
    x = 13,099,348,902.00/129,748.32
  6. Step 6: Final answer
    x = 100,959.68

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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.