Home / 129,687.72-178,956.18-95,714.57

Finding the Fourth Proportional to 129,687.72, 178,956.18 and 95,714.57

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Solution

The fourth proportional to 129,687.72, 178,956.18 and 95,714.57 is: 132,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,687.72 : 178,956.18 = 95,714.57 : x
  2. Step 2: Convert to fraction form
    129,687.72/178,956.18 = 95,714.57/x
  3. Step 3: Cross multiply
    129,687.72x = 178,956.18 × 95,714.57
  4. Step 4: Simplify right side
    129,687.72x = 17,128,712,922.76
  5. Step 5: Solve for x
    x = 17,128,712,922.76/129,687.72
  6. Step 6: Final answer
    x = 132,076.60

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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.