Home / 129,549.65-194,331.42-40,810.10

Finding the Fourth Proportional to 129,549.65, 194,331.42 and 40,810.10

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Solution

The fourth proportional to 129,549.65, 194,331.42 and 40,810.10 is: 61,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,549.65 : 194,331.42 = 40,810.10 : x
  2. Step 2: Convert to fraction form
    129,549.65/194,331.42 = 40,810.10/x
  3. Step 3: Cross multiply
    129,549.65x = 194,331.42 × 40,810.10
  4. Step 4: Simplify right side
    129,549.65x = 7,930,683,711.68
  5. Step 5: Solve for x
    x = 7,930,683,711.68/129,549.65
  6. Step 6: Final answer
    x = 61,217.33

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1.5x scale

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.