Home / 98,258.22-135,489.04-66,371.76

Finding the Fourth Proportional to 98,258.22, 135,489.04 and 66,371.76

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Solution

The fourth proportional to 98,258.22, 135,489.04 and 66,371.76 is: 91,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,258.22 : 135,489.04 = 66,371.76 : x
  2. Step 2: Convert to fraction form
    98,258.22/135,489.04 = 66,371.76/x
  3. Step 3: Cross multiply
    98,258.22x = 135,489.04 × 66,371.76
  4. Step 4: Simplify right side
    98,258.22x = 8,992,645,879.58
  5. Step 5: Solve for x
    x = 8,992,645,879.58/98,258.22
  6. Step 6: Final answer
    x = 91,520.55

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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.