Home / 138,066.13-206,967.93-88,005.70

Finding the Fourth Proportional to 138,066.13, 206,967.93 and 88,005.70

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Solution

The fourth proportional to 138,066.13, 206,967.93 and 88,005.70 is: 131,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,066.13 : 206,967.93 = 88,005.70 : x
  2. Step 2: Convert to fraction form
    138,066.13/206,967.93 = 88,005.70/x
  3. Step 3: Cross multiply
    138,066.13x = 206,967.93 × 88,005.70
  4. Step 4: Simplify right side
    138,066.13x = 18,214,357,557.20
  5. Step 5: Solve for x
    x = 18,214,357,557.20/138,066.13
  6. Step 6: Final answer
    x = 131,924.88

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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.