Home / 132,039.92-182,198.72-84,321.20

Finding the Fourth Proportional to 132,039.92, 182,198.72 and 84,321.20

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Solution

The fourth proportional to 132,039.92, 182,198.72 and 84,321.20 is: 116,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,039.92 : 182,198.72 = 84,321.20 : x
  2. Step 2: Convert to fraction form
    132,039.92/182,198.72 = 84,321.20/x
  3. Step 3: Cross multiply
    132,039.92x = 182,198.72 × 84,321.20
  4. Step 4: Simplify right side
    132,039.92x = 15,363,214,708.86
  5. Step 5: Solve for x
    x = 15,363,214,708.86/132,039.92
  6. Step 6: Final answer
    x = 116,352.80

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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.