Home / 138,386.43-207,579.84-38,546.91

Finding the Fourth Proportional to 138,386.43, 207,579.84 and 38,546.91

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Solution

The fourth proportional to 138,386.43, 207,579.84 and 38,546.91 is: 57,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,386.43 : 207,579.84 = 38,546.91 : x
  2. Step 2: Convert to fraction form
    138,386.43/207,579.84 = 38,546.91/x
  3. Step 3: Cross multiply
    138,386.43x = 207,579.84 × 38,546.91
  4. Step 4: Simplify right side
    138,386.43x = 8,001,561,410.29
  5. Step 5: Solve for x
    x = 8,001,561,410.29/138,386.43
  6. Step 6: Final answer
    x = 57,820.42

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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.