Home / 143,181.67-197,591.17-79,519.47

Finding the Fourth Proportional to 143,181.67, 197,591.17 and 79,519.47

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Solution

The fourth proportional to 143,181.67, 197,591.17 and 79,519.47 is: 109,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,181.67 : 197,591.17 = 79,519.47 : x
  2. Step 2: Convert to fraction form
    143,181.67/197,591.17 = 79,519.47/x
  3. Step 3: Cross multiply
    143,181.67x = 197,591.17 × 79,519.47
  4. Step 4: Simplify right side
    143,181.67x = 15,712,345,115.08
  5. Step 5: Solve for x
    x = 15,712,345,115.08/143,181.67
  6. Step 6: Final answer
    x = 109,737.13

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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.