Home / 138,372.48-207,555.03-38,528.64

Finding the Fourth Proportional to 138,372.48, 207,555.03 and 38,528.64

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Solution

The fourth proportional to 138,372.48, 207,555.03 and 38,528.64 is: 57,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,372.48 : 207,555.03 = 38,528.64 : x
  2. Step 2: Convert to fraction form
    138,372.48/207,555.03 = 38,528.64/x
  3. Step 3: Cross multiply
    138,372.48x = 207,555.03 × 38,528.64
  4. Step 4: Simplify right side
    138,372.48x = 7,996,813,031.06
  5. Step 5: Solve for x
    x = 7,996,813,031.06/138,372.48
  6. Step 6: Final answer
    x = 57,791.93

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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.