Home / 198,660.04-298,177.33-72,422.30

Finding the Fourth Proportional to 198,660.04, 298,177.33 and 72,422.30

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Solution

The fourth proportional to 198,660.04, 298,177.33 and 72,422.30 is: 108,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,660.04 : 298,177.33 = 72,422.30 : x
  2. Step 2: Convert to fraction form
    198,660.04/298,177.33 = 72,422.30/x
  3. Step 3: Cross multiply
    198,660.04x = 298,177.33 × 72,422.30
  4. Step 4: Simplify right side
    198,660.04x = 21,594,688,542.95
  5. Step 5: Solve for x
    x = 21,594,688,542.95/198,660.04
  6. Step 6: Final answer
    x = 108,701.72

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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.