Home / 146,965.10-220,119.60-120,721.10

Finding the Fourth Proportional to 146,965.10, 220,119.60 and 120,721.10

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Solution

The fourth proportional to 146,965.10, 220,119.60 and 120,721.10 is: 180,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,965.10 : 220,119.60 = 120,721.10 : x
  2. Step 2: Convert to fraction form
    146,965.10/220,119.60 = 120,721.10/x
  3. Step 3: Cross multiply
    146,965.10x = 220,119.60 × 120,721.10
  4. Step 4: Simplify right side
    146,965.10x = 26,573,080,243.56
  5. Step 5: Solve for x
    x = 26,573,080,243.56/146,965.10
  6. Step 6: Final answer
    x = 180,812.18

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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.