Home / 153,008.20-229,512.30-68,735.80

Finding the Fourth Proportional to 153,008.20, 229,512.30 and 68,735.80

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Solution

The fourth proportional to 153,008.20, 229,512.30 and 68,735.80 is: 103,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,008.20 : 229,512.30 = 68,735.80 : x
  2. Step 2: Convert to fraction form
    153,008.20/229,512.30 = 68,735.80/x
  3. Step 3: Cross multiply
    153,008.20x = 229,512.30 × 68,735.80
  4. Step 4: Simplify right side
    153,008.20x = 15,775,711,550.34
  5. Step 5: Solve for x
    x = 15,775,711,550.34/153,008.20
  6. Step 6: Final answer
    x = 103,103.70

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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.