Home / 147,119.20-220,160.40-102,536.80

Finding the Fourth Proportional to 147,119.20, 220,160.40 and 102,536.80

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Solution

The fourth proportional to 147,119.20, 220,160.40 and 102,536.80 is: 153,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,119.20 : 220,160.40 = 102,536.80 : x
  2. Step 2: Convert to fraction form
    147,119.20/220,160.40 = 102,536.80/x
  3. Step 3: Cross multiply
    147,119.20x = 220,160.40 × 102,536.80
  4. Step 4: Simplify right side
    147,119.20x = 22,574,542,902.72
  5. Step 5: Solve for x
    x = 22,574,542,902.72/147,119.20
  6. Step 6: Final answer
    x = 153,443.89

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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.