Home / 122,086.26-168,581.75-91,818.86

Finding the Fourth Proportional to 122,086.26, 168,581.75 and 91,818.86

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Solution

The fourth proportional to 122,086.26, 168,581.75 and 91,818.86 is: 126,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,086.26 : 168,581.75 = 91,818.86 : x
  2. Step 2: Convert to fraction form
    122,086.26/168,581.75 = 91,818.86/x
  3. Step 3: Cross multiply
    122,086.26x = 168,581.75 × 91,818.86
  4. Step 4: Simplify right side
    122,086.26x = 15,478,982,799.80
  5. Step 5: Solve for x
    x = 15,478,982,799.80/122,086.26
  6. Step 6: Final answer
    x = 126,787.26

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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.