Home / 143,431.52-197,932.68-79,767.95

Finding the Fourth Proportional to 143,431.52, 197,932.68 and 79,767.95

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Solution

The fourth proportional to 143,431.52, 197,932.68 and 79,767.95 is: 110,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,431.52 : 197,932.68 = 79,767.95 : x
  2. Step 2: Convert to fraction form
    143,431.52/197,932.68 = 79,767.95/x
  3. Step 3: Cross multiply
    143,431.52x = 197,932.68 × 79,767.95
  4. Step 4: Simplify right side
    143,431.52x = 15,788,683,131.94
  5. Step 5: Solve for x
    x = 15,788,683,131.94/143,431.52
  6. Step 6: Final answer
    x = 110,078.20

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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.