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Finding the Fourth Proportional to 138,601.46, 207,927.82 and 43,855.49

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Solution

The fourth proportional to 138,601.46, 207,927.82 and 43,855.49 is: 65,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601.46 : 207,927.82 = 43,855.49 : x
  2. Step 2: Convert to fraction form
    138,601.46/207,927.82 = 43,855.49/x
  3. Step 3: Cross multiply
    138,601.46x = 207,927.82 × 43,855.49
  4. Step 4: Simplify right side
    138,601.46x = 9,118,776,430.73
  5. Step 5: Solve for x
    x = 9,118,776,430.73/138,601.46
  6. Step 6: Final answer
    x = 65,791.35

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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.