Home / 138,400.30-207,568.59-54,162.46

Finding the Fourth Proportional to 138,400.30, 207,568.59 and 54,162.46

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Solution

The fourth proportional to 138,400.30, 207,568.59 and 54,162.46 is: 81,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,400.30 : 207,568.59 = 54,162.46 : x
  2. Step 2: Convert to fraction form
    138,400.30/207,568.59 = 54,162.46/x
  3. Step 3: Cross multiply
    138,400.30x = 207,568.59 × 54,162.46
  4. Step 4: Simplify right side
    138,400.30x = 11,242,425,453.13
  5. Step 5: Solve for x
    x = 11,242,425,453.13/138,400.30
  6. Step 6: Final answer
    x = 81,231.22

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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.