Home / 131,991.62-182,146.20-74,630.06

Finding the Fourth Proportional to 131,991.62, 182,146.20 and 74,630.06

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Solution

The fourth proportional to 131,991.62, 182,146.20 and 74,630.06 is: 102,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,991.62 : 182,146.20 = 74,630.06 : x
  2. Step 2: Convert to fraction form
    131,991.62/182,146.20 = 74,630.06/x
  3. Step 3: Cross multiply
    131,991.62x = 182,146.20 × 74,630.06
  4. Step 4: Simplify right side
    131,991.62x = 13,593,580,924.04
  5. Step 5: Solve for x
    x = 13,593,580,924.04/131,991.62
  6. Step 6: Final answer
    x = 102,988.21

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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.