Home / 138,723.48-208,034.19-49,953.15

Finding the Fourth Proportional to 138,723.48, 208,034.19 and 49,953.15

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Solution

The fourth proportional to 138,723.48, 208,034.19 and 49,953.15 is: 74,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,723.48 : 208,034.19 = 49,953.15 : x
  2. Step 2: Convert to fraction form
    138,723.48/208,034.19 = 49,953.15/x
  3. Step 3: Cross multiply
    138,723.48x = 208,034.19 × 49,953.15
  4. Step 4: Simplify right side
    138,723.48x = 10,391,963,098.20
  5. Step 5: Solve for x
    x = 10,391,963,098.20/138,723.48
  6. Step 6: Final answer
    x = 74,911.35

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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.