Home / 147,839.20-221,710.20-54,332.80

Finding the Fourth Proportional to 147,839.20, 221,710.20 and 54,332.80

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Solution

The fourth proportional to 147,839.20, 221,710.20 and 54,332.80 is: 81,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,839.20 : 221,710.20 = 54,332.80 : x
  2. Step 2: Convert to fraction form
    147,839.20/221,710.20 = 54,332.80/x
  3. Step 3: Cross multiply
    147,839.20x = 221,710.20 × 54,332.80
  4. Step 4: Simplify right side
    147,839.20x = 12,046,135,954.56
  5. Step 5: Solve for x
    x = 12,046,135,954.56/147,839.20
  6. Step 6: Final answer
    x = 81,481.34

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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.