Home / 204,445.12-306,570.66-71,309.20

Finding the Fourth Proportional to 204,445.12, 306,570.66 and 71,309.20

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Solution

The fourth proportional to 204,445.12, 306,570.66 and 71,309.20 is: 106,929.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,445.12 : 306,570.66 = 71,309.20 : x
  2. Step 2: Convert to fraction form
    204,445.12/306,570.66 = 71,309.20/x
  3. Step 3: Cross multiply
    204,445.12x = 306,570.66 × 71,309.20
  4. Step 4: Simplify right side
    204,445.12x = 21,861,308,508.07
  5. Step 5: Solve for x
    x = 21,861,308,508.07/204,445.12
  6. Step 6: Final answer
    x = 106,929.96

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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.