Home / 136,960.12-205,157.18-80,626.64

Finding the Fourth Proportional to 136,960.12, 205,157.18 and 80,626.64

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Solution

The fourth proportional to 136,960.12, 205,157.18 and 80,626.64 is: 120,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,960.12 : 205,157.18 = 80,626.64 : x
  2. Step 2: Convert to fraction form
    136,960.12/205,157.18 = 80,626.64/x
  3. Step 3: Cross multiply
    136,960.12x = 205,157.18 × 80,626.64
  4. Step 4: Simplify right side
    136,960.12x = 16,541,134,095.28
  5. Step 5: Solve for x
    x = 16,541,134,095.28/136,960.12
  6. Step 6: Final answer
    x = 120,773.36

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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.