Home / 198,628.76-297,849.48-72,180.06

Finding the Fourth Proportional to 198,628.76, 297,849.48 and 72,180.06

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Solution

The fourth proportional to 198,628.76, 297,849.48 and 72,180.06 is: 108,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,628.76 : 297,849.48 = 72,180.06 : x
  2. Step 2: Convert to fraction form
    198,628.76/297,849.48 = 72,180.06/x
  3. Step 3: Cross multiply
    198,628.76x = 297,849.48 × 72,180.06
  4. Step 4: Simplify right side
    198,628.76x = 21,498,793,337.37
  5. Step 5: Solve for x
    x = 21,498,793,337.37/198,628.76
  6. Step 6: Final answer
    x = 108,236.05

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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.