Home / 204,015.40-306,023.10-71,045.80

Finding the Fourth Proportional to 204,015.40, 306,023.10 and 71,045.80

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Solution

The fourth proportional to 204,015.40, 306,023.10 and 71,045.80 is: 106,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,015.40 : 306,023.10 = 71,045.80 : x
  2. Step 2: Convert to fraction form
    204,015.40/306,023.10 = 71,045.80/x
  3. Step 3: Cross multiply
    204,015.40x = 306,023.10 × 71,045.80
  4. Step 4: Simplify right side
    204,015.40x = 21,741,655,957.98
  5. Step 5: Solve for x
    x = 21,741,655,957.98/204,015.40
  6. Step 6: Final answer
    x = 106,568.70

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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.