Home / 138,057.03-207,090.14-38,208.87

Finding the Fourth Proportional to 138,057.03, 207,090.14 and 38,208.87

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Solution

The fourth proportional to 138,057.03, 207,090.14 and 38,208.87 is: 57,314.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,057.03 : 207,090.14 = 38,208.87 : x
  2. Step 2: Convert to fraction form
    138,057.03/207,090.14 = 38,208.87/x
  3. Step 3: Cross multiply
    138,057.03x = 207,090.14 × 38,208.87
  4. Step 4: Simplify right side
    138,057.03x = 7,912,680,046.50
  5. Step 5: Solve for x
    x = 7,912,680,046.50/138,057.03
  6. Step 6: Final answer
    x = 57,314.58

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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.