Home / 204,023.30-306,034.95-85,828.10

Finding the Fourth Proportional to 204,023.30, 306,034.95 and 85,828.10

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Solution

The fourth proportional to 204,023.30, 306,034.95 and 85,828.10 is: 128,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,023.30 : 306,034.95 = 85,828.10 : x
  2. Step 2: Convert to fraction form
    204,023.30/306,034.95 = 85,828.10/x
  3. Step 3: Cross multiply
    204,023.30x = 306,034.95 × 85,828.10
  4. Step 4: Simplify right side
    204,023.30x = 26,266,398,292.10
  5. Step 5: Solve for x
    x = 26,266,398,292.10/204,023.30
  6. Step 6: Final answer
    x = 128,742.15

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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.