Home / 138,688.97-208,034.83-43,917.38

Finding the Fourth Proportional to 138,688.97, 208,034.83 and 43,917.38

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Solution

The fourth proportional to 138,688.97, 208,034.83 and 43,917.38 is: 65,876.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,688.97 : 208,034.83 = 43,917.38 : x
  2. Step 2: Convert to fraction form
    138,688.97/208,034.83 = 43,917.38/x
  3. Step 3: Cross multiply
    138,688.97x = 208,034.83 × 43,917.38
  4. Step 4: Simplify right side
    138,688.97x = 9,136,345,092.64
  5. Step 5: Solve for x
    x = 9,136,345,092.64/138,688.97
  6. Step 6: Final answer
    x = 65,876.51

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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.