Home / 143,402.82-197,895.33-79,740.96

Finding the Fourth Proportional to 143,402.82, 197,895.33 and 79,740.96

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Solution

The fourth proportional to 143,402.82, 197,895.33 and 79,740.96 is: 110,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,402.82 : 197,895.33 = 79,740.96 : x
  2. Step 2: Convert to fraction form
    143,402.82/197,895.33 = 79,740.96/x
  3. Step 3: Cross multiply
    143,402.82x = 197,895.33 × 79,740.96
  4. Step 4: Simplify right side
    143,402.82x = 15,780,363,593.72
  5. Step 5: Solve for x
    x = 15,780,363,593.72/143,402.82
  6. Step 6: Final answer
    x = 110,042.21

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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.