Home / 82,558.20-123,837.30-78,350.97

Finding the Fourth Proportional to 82,558.20, 123,837.30 and 78,350.97

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Solution

The fourth proportional to 82,558.20, 123,837.30 and 78,350.97 is: 117,526.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,558.20 : 123,837.30 = 78,350.97 : x
  2. Step 2: Convert to fraction form
    82,558.20/123,837.30 = 78,350.97/x
  3. Step 3: Cross multiply
    82,558.20x = 123,837.30 × 78,350.97
  4. Step 4: Simplify right side
    82,558.20x = 9,702,772,577.18
  5. Step 5: Solve for x
    x = 9,702,772,577.18/82,558.20
  6. Step 6: Final answer
    x = 117,526.46

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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.