Home / 88,714.20-132,876.90-78,864.60

Finding the Fourth Proportional to 88,714.20, 132,876.90 and 78,864.60

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Solution

The fourth proportional to 88,714.20, 132,876.90 and 78,864.60 is: 118,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,714.20 : 132,876.90 = 78,864.60 : x
  2. Step 2: Convert to fraction form
    88,714.20/132,876.90 = 78,864.60/x
  3. Step 3: Cross multiply
    88,714.20x = 132,876.90 × 78,864.60
  4. Step 4: Simplify right side
    88,714.20x = 10,479,283,567.74
  5. Step 5: Solve for x
    x = 10,479,283,567.74/88,714.20
  6. Step 6: Final answer
    x = 118,124.08

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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.