Home / 144,836.12-217,314.19-78,197.92

Finding the Fourth Proportional to 144,836.12, 217,314.19 and 78,197.92

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Solution

The fourth proportional to 144,836.12, 217,314.19 and 78,197.92 is: 117,329.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,836.12 : 217,314.19 = 78,197.92 : x
  2. Step 2: Convert to fraction form
    144,836.12/217,314.19 = 78,197.92/x
  3. Step 3: Cross multiply
    144,836.12x = 217,314.19 × 78,197.92
  4. Step 4: Simplify right side
    144,836.12x = 16,993,517,644.48
  5. Step 5: Solve for x
    x = 16,993,517,644.48/144,836.12
  6. Step 6: Final answer
    x = 117,329.28

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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.