Home / 143,314.75-197,772.92-79,651.18

Finding the Fourth Proportional to 143,314.75, 197,772.92 and 79,651.18

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Solution

The fourth proportional to 143,314.75, 197,772.92 and 79,651.18 is: 109,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,314.75 : 197,772.92 = 79,651.18 : x
  2. Step 2: Convert to fraction form
    143,314.75/197,772.92 = 79,651.18/x
  3. Step 3: Cross multiply
    143,314.75x = 197,772.92 × 79,651.18
  4. Step 4: Simplify right side
    143,314.75x = 15,752,845,461.18
  5. Step 5: Solve for x
    x = 15,752,845,461.18/143,314.75
  6. Step 6: Final answer
    x = 109,917.83

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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.