Home / 138,425.10-207,346.04-112,181.10

Finding the Fourth Proportional to 138,425.10, 207,346.04 and 112,181.10

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Solution

The fourth proportional to 138,425.10, 207,346.04 and 112,181.10 is: 168,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,425.10 : 207,346.04 = 112,181.10 : x
  2. Step 2: Convert to fraction form
    138,425.10/207,346.04 = 112,181.10/x
  3. Step 3: Cross multiply
    138,425.10x = 207,346.04 × 112,181.10
  4. Step 4: Simplify right side
    138,425.10x = 23,260,306,847.84
  5. Step 5: Solve for x
    x = 23,260,306,847.84/138,425.10
  6. Step 6: Final answer
    x = 168,035.33

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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.