Home / 138,233.12-207,377.36-43,487.15

Finding the Fourth Proportional to 138,233.12, 207,377.36 and 43,487.15

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Solution

The fourth proportional to 138,233.12, 207,377.36 and 43,487.15 is: 65,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,233.12 : 207,377.36 = 43,487.15 : x
  2. Step 2: Convert to fraction form
    138,233.12/207,377.36 = 43,487.15/x
  3. Step 3: Cross multiply
    138,233.12x = 207,377.36 × 43,487.15
  4. Step 4: Simplify right side
    138,233.12x = 9,018,249,106.60
  5. Step 5: Solve for x
    x = 9,018,249,106.60/138,233.12
  6. Step 6: Final answer
    x = 65,239.43

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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.