Home / 138,626.68-191,304.82-74,964.46

Finding the Fourth Proportional to 138,626.68, 191,304.82 and 74,964.46

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Solution

The fourth proportional to 138,626.68, 191,304.82 and 74,964.46 is: 103,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,626.68 : 191,304.82 = 74,964.46 : x
  2. Step 2: Convert to fraction form
    138,626.68/191,304.82 = 74,964.46/x
  3. Step 3: Cross multiply
    138,626.68x = 191,304.82 × 74,964.46
  4. Step 4: Simplify right side
    138,626.68x = 14,341,062,526.70
  5. Step 5: Solve for x
    x = 14,341,062,526.70/138,626.68
  6. Step 6: Final answer
    x = 103,450.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.