Home / 129,132.43-193,718.66-65,918.27

Finding the Fourth Proportional to 129,132.43, 193,718.66 and 65,918.27

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Solution

The fourth proportional to 129,132.43, 193,718.66 and 65,918.27 is: 98,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,132.43 : 193,718.66 = 65,918.27 : x
  2. Step 2: Convert to fraction form
    129,132.43/193,718.66 = 65,918.27/x
  3. Step 3: Cross multiply
    129,132.43x = 193,718.66 × 65,918.27
  4. Step 4: Simplify right side
    129,132.43x = 12,769,599,088.62
  5. Step 5: Solve for x
    x = 12,769,599,088.62/129,132.43
  6. Step 6: Final answer
    x = 98,887.63

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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.