Home / 198,628.75-297,849.48-72,180.07

Finding the Fourth Proportional to 198,628.75, 297,849.48 and 72,180.07

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Solution

The fourth proportional to 198,628.75, 297,849.48 and 72,180.07 is: 108,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,628.75 : 297,849.48 = 72,180.07 : x
  2. Step 2: Convert to fraction form
    198,628.75/297,849.48 = 72,180.07/x
  3. Step 3: Cross multiply
    198,628.75x = 297,849.48 × 72,180.07
  4. Step 4: Simplify right side
    198,628.75x = 21,498,796,315.86
  5. Step 5: Solve for x
    x = 21,498,796,315.86/198,628.75
  6. Step 6: Final answer
    x = 108,236.08

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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.