Home / 129,549.43-194,331.10-40,809.88

Finding the Fourth Proportional to 129,549.43, 194,331.10 and 40,809.88

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Solution

The fourth proportional to 129,549.43, 194,331.10 and 40,809.88 is: 61,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,549.43 : 194,331.10 = 40,809.88 : x
  2. Step 2: Convert to fraction form
    129,549.43/194,331.10 = 40,809.88/x
  3. Step 3: Cross multiply
    129,549.43x = 194,331.10 × 40,809.88
  4. Step 4: Simplify right side
    129,549.43x = 7,930,628,871.27
  5. Step 5: Solve for x
    x = 7,930,628,871.27/129,549.43
  6. Step 6: Final answer
    x = 61,217.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.