Home / 147,936.12-221,882.31-54,420

Finding the Fourth Proportional to 147,936.12, 221,882.31 and 54,420

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Solution

The fourth proportional to 147,936.12, 221,882.31 and 54,420 is: 81,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,936.12 : 221,882.31 = 54,420 : x
  2. Step 2: Convert to fraction form
    147,936.12/221,882.31 = 54,420/x
  3. Step 3: Cross multiply
    147,936.12x = 221,882.31 × 54,420
  4. Step 4: Simplify right side
    147,936.12x = 12,074,835,310.20
  5. Step 5: Solve for x
    x = 12,074,835,310.20/147,936.12
  6. Step 6: Final answer
    x = 81,621.95

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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.