Home / 129,367.04-194,078.40-76,714.88

Finding the Fourth Proportional to 129,367.04, 194,078.40 and 76,714.88

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Solution

The fourth proportional to 129,367.04, 194,078.40 and 76,714.88 is: 115,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,367.04 : 194,078.40 = 76,714.88 : x
  2. Step 2: Convert to fraction form
    129,367.04/194,078.40 = 76,714.88/x
  3. Step 3: Cross multiply
    129,367.04x = 194,078.40 × 76,714.88
  4. Step 4: Simplify right side
    129,367.04x = 14,888,701,166.59
  5. Step 5: Solve for x
    x = 14,888,701,166.59/129,367.04
  6. Step 6: Final answer
    x = 115,088.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.