Home / 132,109.47-182,230.42-78,358.48

Finding the Fourth Proportional to 132,109.47, 182,230.42 and 78,358.48

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Solution

The fourth proportional to 132,109.47, 182,230.42 and 78,358.48 is: 108,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,109.47 : 182,230.42 = 78,358.48 : x
  2. Step 2: Convert to fraction form
    132,109.47/182,230.42 = 78,358.48/x
  3. Step 3: Cross multiply
    132,109.47x = 182,230.42 × 78,358.48
  4. Step 4: Simplify right side
    132,109.47x = 14,279,298,720.96
  5. Step 5: Solve for x
    x = 14,279,298,720.96/132,109.47
  6. Step 6: Final answer
    x = 108,086.87

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1.5x scale

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.