Home / 146,720.40-220,080.60-99,481.20

Finding the Fourth Proportional to 146,720.40, 220,080.60 and 99,481.20

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Solution

The fourth proportional to 146,720.40, 220,080.60 and 99,481.20 is: 149,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,720.40 : 220,080.60 = 99,481.20 : x
  2. Step 2: Convert to fraction form
    146,720.40/220,080.60 = 99,481.20/x
  3. Step 3: Cross multiply
    146,720.40x = 220,080.60 × 99,481.20
  4. Step 4: Simplify right side
    146,720.40x = 21,893,882,184.72
  5. Step 5: Solve for x
    x = 21,893,882,184.72/146,720.40
  6. Step 6: Final answer
    x = 149,221.80

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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.