Home / 198,655.27-298,170.18-72,417.52

Finding the Fourth Proportional to 198,655.27, 298,170.18 and 72,417.52

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Solution

The fourth proportional to 198,655.27, 298,170.18 and 72,417.52 is: 108,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,655.27 : 298,170.18 = 72,417.52 : x
  2. Step 2: Convert to fraction form
    198,655.27/298,170.18 = 72,417.52/x
  3. Step 3: Cross multiply
    198,655.27x = 298,170.18 × 72,417.52
  4. Step 4: Simplify right side
    198,655.27x = 21,592,745,346.27
  5. Step 5: Solve for x
    x = 21,592,745,346.27/198,655.27
  6. Step 6: Final answer
    x = 108,694.55

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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.