Home / 147,828.20-221,693.70-54,321.80

Finding the Fourth Proportional to 147,828.20, 221,693.70 and 54,321.80

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Solution

The fourth proportional to 147,828.20, 221,693.70 and 54,321.80 is: 81,464.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,828.20 : 221,693.70 = 54,321.80 : x
  2. Step 2: Convert to fraction form
    147,828.20/221,693.70 = 54,321.80/x
  3. Step 3: Cross multiply
    147,828.20x = 221,693.70 × 54,321.80
  4. Step 4: Simplify right side
    147,828.20x = 12,042,800,832.66
  5. Step 5: Solve for x
    x = 12,042,800,832.66/147,828.20
  6. Step 6: Final answer
    x = 81,464.84

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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.