Home / 121,934.03-168,195.29-80,541.27

Finding the Fourth Proportional to 121,934.03, 168,195.29 and 80,541.27

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Solution

The fourth proportional to 121,934.03, 168,195.29 and 80,541.27 is: 111,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,934.03 : 168,195.29 = 80,541.27 : x
  2. Step 2: Convert to fraction form
    121,934.03/168,195.29 = 80,541.27/x
  3. Step 3: Cross multiply
    121,934.03x = 168,195.29 × 80,541.27
  4. Step 4: Simplify right side
    121,934.03x = 13,546,661,861.91
  5. Step 5: Solve for x
    x = 13,546,661,861.91/121,934.03
  6. Step 6: Final answer
    x = 111,098.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.