Home / 82,355.20-123,225.60-74,982.40

Finding the Fourth Proportional to 82,355.20, 123,225.60 and 74,982.40

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Solution

The fourth proportional to 82,355.20, 123,225.60 and 74,982.40 is: 112,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,355.20 : 123,225.60 = 74,982.40 : x
  2. Step 2: Convert to fraction form
    82,355.20/123,225.60 = 74,982.40/x
  3. Step 3: Cross multiply
    82,355.20x = 123,225.60 × 74,982.40
  4. Step 4: Simplify right side
    82,355.20x = 9,239,751,229.44
  5. Step 5: Solve for x
    x = 9,239,751,229.44/82,355.20
  6. Step 6: Final answer
    x = 112,193.90

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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.