Home / 129,133.43-193,720.16-65,919.27

Finding the Fourth Proportional to 129,133.43, 193,720.16 and 65,919.27

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Solution

The fourth proportional to 129,133.43, 193,720.16 and 65,919.27 is: 98,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,133.43 : 193,720.16 = 65,919.27 : x
  2. Step 2: Convert to fraction form
    129,133.43/193,720.16 = 65,919.27/x
  3. Step 3: Cross multiply
    129,133.43x = 193,720.16 × 65,919.27
  4. Step 4: Simplify right side
    129,133.43x = 12,769,891,531.48
  5. Step 5: Solve for x
    x = 12,769,891,531.48/129,133.43
  6. Step 6: Final answer
    x = 98,889.12

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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.