Home / 142,728.15-214,025.18-82,773.66

Finding the Fourth Proportional to 142,728.15, 214,025.18 and 82,773.66

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Solution

The fourth proportional to 142,728.15, 214,025.18 and 82,773.66 is: 124,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,728.15 : 214,025.18 = 82,773.66 : x
  2. Step 2: Convert to fraction form
    142,728.15/214,025.18 = 82,773.66/x
  3. Step 3: Cross multiply
    142,728.15x = 214,025.18 × 82,773.66
  4. Step 4: Simplify right side
    142,728.15x = 17,715,647,869.48
  5. Step 5: Solve for x
    x = 17,715,647,869.48/142,728.15
  6. Step 6: Final answer
    x = 124,121.61

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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.