Home / 138,141.10-207,181.68-49,400.74

Finding the Fourth Proportional to 138,141.10, 207,181.68 and 49,400.74

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Solution

The fourth proportional to 138,141.10, 207,181.68 and 49,400.74 is: 74,090.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,141.10 : 207,181.68 = 49,400.74 : x
  2. Step 2: Convert to fraction form
    138,141.10/207,181.68 = 49,400.74/x
  3. Step 3: Cross multiply
    138,141.10x = 207,181.68 × 49,400.74
  4. Step 4: Simplify right side
    138,141.10x = 10,234,928,306.44
  5. Step 5: Solve for x
    x = 10,234,928,306.44/138,141.10
  6. Step 6: Final answer
    x = 74,090.39

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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.