Home / 138,403.37-207,443.76-63,531.42

Finding the Fourth Proportional to 138,403.37, 207,443.76 and 63,531.42

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Solution

The fourth proportional to 138,403.37, 207,443.76 and 63,531.42 is: 95,223.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,403.37 : 207,443.76 = 63,531.42 : x
  2. Step 2: Convert to fraction form
    138,403.37/207,443.76 = 63,531.42/x
  3. Step 3: Cross multiply
    138,403.37x = 207,443.76 × 63,531.42
  4. Step 4: Simplify right side
    138,403.37x = 13,179,196,642.94
  5. Step 5: Solve for x
    x = 13,179,196,642.94/138,403.37
  6. Step 6: Final answer
    x = 95,223.09

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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.