Home / 268,680.20-403,042.86-81,693.32

Finding the Fourth Proportional to 268,680.20, 403,042.86 and 81,693.32

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Solution

The fourth proportional to 268,680.20, 403,042.86 and 81,693.32 is: 122,546.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,680.20 : 403,042.86 = 81,693.32 : x
  2. Step 2: Convert to fraction form
    268,680.20/403,042.86 = 81,693.32/x
  3. Step 3: Cross multiply
    268,680.20x = 403,042.86 × 81,693.32
  4. Step 4: Simplify right side
    268,680.20x = 32,925,909,335.70
  5. Step 5: Solve for x
    x = 32,925,909,335.70/268,680.20
  6. Step 6: Final answer
    x = 122,546.84

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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.