Home / 129,981.71-194,979.49-41,242.16

Finding the Fourth Proportional to 129,981.71, 194,979.49 and 41,242.16

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Solution

The fourth proportional to 129,981.71, 194,979.49 and 41,242.16 is: 61,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.71 : 194,979.49 = 41,242.16 : x
  2. Step 2: Convert to fraction form
    129,981.71/194,979.49 = 41,242.16/x
  3. Step 3: Cross multiply
    129,981.71x = 194,979.49 × 41,242.16
  4. Step 4: Simplify right side
    129,981.71x = 8,041,375,707.64
  5. Step 5: Solve for x
    x = 8,041,375,707.64/129,981.71
  6. Step 6: Final answer
    x = 61,865.44

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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.