Home / 148,046.20-221,810.10-121,607.80

Finding the Fourth Proportional to 148,046.20, 221,810.10 and 121,607.80

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Solution

The fourth proportional to 148,046.20, 221,810.10 and 121,607.80 is: 182,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,046.20 : 221,810.10 = 121,607.80 : x
  2. Step 2: Convert to fraction form
    148,046.20/221,810.10 = 121,607.80/x
  3. Step 3: Cross multiply
    148,046.20x = 221,810.10 × 121,607.80
  4. Step 4: Simplify right side
    148,046.20x = 26,973,838,278.78
  5. Step 5: Solve for x
    x = 26,973,838,278.78/148,046.20
  6. Step 6: Final answer
    x = 182,198.79

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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.