Home / 131,988.62-182,142.06-74,626.98

Finding the Fourth Proportional to 131,988.62, 182,142.06 and 74,626.98

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Solution

The fourth proportional to 131,988.62, 182,142.06 and 74,626.98 is: 102,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,988.62 : 182,142.06 = 74,626.98 : x
  2. Step 2: Convert to fraction form
    131,988.62/182,142.06 = 74,626.98/x
  3. Step 3: Cross multiply
    131,988.62x = 182,142.06 × 74,626.98
  4. Step 4: Simplify right side
    131,988.62x = 13,592,711,868.78
  5. Step 5: Solve for x
    x = 13,592,711,868.78/131,988.62
  6. Step 6: Final answer
    x = 102,983.97

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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.