Home / 113,436.55-168,990.73-108,318.97

Finding the Fourth Proportional to 113,436.55, 168,990.73 and 108,318.97

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Solution

The fourth proportional to 113,436.55, 168,990.73 and 108,318.97 is: 161,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,436.55 : 168,990.73 = 108,318.97 : x
  2. Step 2: Convert to fraction form
    113,436.55/168,990.73 = 108,318.97/x
  3. Step 3: Cross multiply
    113,436.55x = 168,990.73 × 108,318.97
  4. Step 4: Simplify right side
    113,436.55x = 18,304,901,813.15
  5. Step 5: Solve for x
    x = 18,304,901,813.15/113,436.55
  6. Step 6: Final answer
    x = 161,366.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.