Home / 120,318.96-166,081.60-69,352.04

Finding the Fourth Proportional to 120,318.96, 166,081.60 and 69,352.04

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Solution

The fourth proportional to 120,318.96, 166,081.60 and 69,352.04 is: 95,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,318.96 : 166,081.60 = 69,352.04 : x
  2. Step 2: Convert to fraction form
    120,318.96/166,081.60 = 69,352.04/x
  3. Step 3: Cross multiply
    120,318.96x = 166,081.60 × 69,352.04
  4. Step 4: Simplify right side
    120,318.96x = 11,518,097,766.46
  5. Step 5: Solve for x
    x = 11,518,097,766.46/120,318.96
  6. Step 6: Final answer
    x = 95,729.70

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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.