Home / 243,387.50-365,115.85-74,921.87

Finding the Fourth Proportional to 243,387.50, 365,115.85 and 74,921.87

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Solution

The fourth proportional to 243,387.50, 365,115.85 and 74,921.87 is: 112,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,387.50 : 365,115.85 = 74,921.87 : x
  2. Step 2: Convert to fraction form
    243,387.50/365,115.85 = 74,921.87/x
  3. Step 3: Cross multiply
    243,387.50x = 365,115.85 × 74,921.87
  4. Step 4: Simplify right side
    243,387.50x = 27,355,162,974.12
  5. Step 5: Solve for x
    x = 27,355,162,974.12/243,387.50
  6. Step 6: Final answer
    x = 112,393.46

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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.