Home / 88,078.60-132,377.10-76,673.80

Finding the Fourth Proportional to 88,078.60, 132,377.10 and 76,673.80

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Solution

The fourth proportional to 88,078.60, 132,377.10 and 76,673.80 is: 115,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,078.60 : 132,377.10 = 76,673.80 : x
  2. Step 2: Convert to fraction form
    88,078.60/132,377.10 = 76,673.80/x
  3. Step 3: Cross multiply
    88,078.60x = 132,377.10 × 76,673.80
  4. Step 4: Simplify right side
    88,078.60x = 10,149,855,289.98
  5. Step 5: Solve for x
    x = 10,149,855,289.98/88,078.60
  6. Step 6: Final answer
    x = 115,236.34

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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.