Home / 138,968.52-208,447.20-96,726.60

Finding the Fourth Proportional to 138,968.52, 208,447.20 and 96,726.60

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Solution

The fourth proportional to 138,968.52, 208,447.20 and 96,726.60 is: 145,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,968.52 : 208,447.20 = 96,726.60 : x
  2. Step 2: Convert to fraction form
    138,968.52/208,447.20 = 96,726.60/x
  3. Step 3: Cross multiply
    138,968.52x = 208,447.20 × 96,726.60
  4. Step 4: Simplify right side
    138,968.52x = 20,162,388,935.52
  5. Step 5: Solve for x
    x = 20,162,388,935.52/138,968.52
  6. Step 6: Final answer
    x = 145,086.02

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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.