Home / 129,956.20-179,342.54-76,279.93

Finding the Fourth Proportional to 129,956.20, 179,342.54 and 76,279.93

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Solution

The fourth proportional to 129,956.20, 179,342.54 and 76,279.93 is: 105,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,956.20 : 179,342.54 = 76,279.93 : x
  2. Step 2: Convert to fraction form
    129,956.20/179,342.54 = 76,279.93/x
  3. Step 3: Cross multiply
    129,956.20x = 179,342.54 × 76,279.93
  4. Step 4: Simplify right side
    129,956.20x = 13,680,236,397.22
  5. Step 5: Solve for x
    x = 13,680,236,397.22/129,956.20
  6. Step 6: Final answer
    x = 105,268.05

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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.