Home / 138,661.66-207,943.83-38,795.02

Finding the Fourth Proportional to 138,661.66, 207,943.83 and 38,795.02

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Solution

The fourth proportional to 138,661.66, 207,943.83 and 38,795.02 is: 58,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,661.66 : 207,943.83 = 38,795.02 : x
  2. Step 2: Convert to fraction form
    138,661.66/207,943.83 = 38,795.02/x
  3. Step 3: Cross multiply
    138,661.66x = 207,943.83 × 38,795.02
  4. Step 4: Simplify right side
    138,661.66x = 8,067,185,043.73
  5. Step 5: Solve for x
    x = 8,067,185,043.73/138,661.66
  6. Step 6: Final answer
    x = 58,178.92

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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.