Home / 131,199.97-181,042.85-76,744.13

Finding the Fourth Proportional to 131,199.97, 181,042.85 and 76,744.13

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Solution

The fourth proportional to 131,199.97, 181,042.85 and 76,744.13 is: 105,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,199.97 : 181,042.85 = 76,744.13 : x
  2. Step 2: Convert to fraction form
    131,199.97/181,042.85 = 76,744.13/x
  3. Step 3: Cross multiply
    131,199.97x = 181,042.85 × 76,744.13
  4. Step 4: Simplify right side
    131,199.97x = 13,893,975,632.25
  5. Step 5: Solve for x
    x = 13,893,975,632.25/131,199.97
  6. Step 6: Final answer
    x = 105,899.23

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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.