Home / 204,003.30-306,004.95-85,808.10

Finding the Fourth Proportional to 204,003.30, 306,004.95 and 85,808.10

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Solution

The fourth proportional to 204,003.30, 306,004.95 and 85,808.10 is: 128,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,003.30 : 306,004.95 = 85,808.10 : x
  2. Step 2: Convert to fraction form
    204,003.30/306,004.95 = 85,808.10/x
  3. Step 3: Cross multiply
    204,003.30x = 306,004.95 × 85,808.10
  4. Step 4: Simplify right side
    204,003.30x = 26,257,703,350.10
  5. Step 5: Solve for x
    x = 26,257,703,350.10/204,003.30
  6. Step 6: Final answer
    x = 128,712.15

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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.