Home / 120,359.13-166,084.04-71,951.49

Finding the Fourth Proportional to 120,359.13, 166,084.04 and 71,951.49

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Solution

The fourth proportional to 120,359.13, 166,084.04 and 71,951.49 is: 99,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,359.13 : 166,084.04 = 71,951.49 : x
  2. Step 2: Convert to fraction form
    120,359.13/166,084.04 = 71,951.49/x
  3. Step 3: Cross multiply
    120,359.13x = 166,084.04 × 71,951.49
  4. Step 4: Simplify right side
    120,359.13x = 11,949,993,918.37
  5. Step 5: Solve for x
    x = 11,949,993,918.37/120,359.13
  6. Step 6: Final answer
    x = 99,286.14

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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.