Home / 82,631.80-123,947.70-73,646.20

Finding the Fourth Proportional to 82,631.80, 123,947.70 and 73,646.20

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Solution

The fourth proportional to 82,631.80, 123,947.70 and 73,646.20 is: 110,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,631.80 : 123,947.70 = 73,646.20 : x
  2. Step 2: Convert to fraction form
    82,631.80/123,947.70 = 73,646.20/x
  3. Step 3: Cross multiply
    82,631.80x = 123,947.70 × 73,646.20
  4. Step 4: Simplify right side
    82,631.80x = 9,128,277,103.74
  5. Step 5: Solve for x
    x = 9,128,277,103.74/82,631.80
  6. Step 6: Final answer
    x = 110,469.30

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Similar ratio
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1.5x scale

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.