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Finding the Fourth Proportional to 153,001.20, 229,550.40 and 68,728.80

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Solution

The fourth proportional to 153,001.20, 229,550.40 and 68,728.80 is: 103,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,001.20 : 229,550.40 = 68,728.80 : x
  2. Step 2: Convert to fraction form
    153,001.20/229,550.40 = 68,728.80/x
  3. Step 3: Cross multiply
    153,001.20x = 229,550.40 × 68,728.80
  4. Step 4: Simplify right side
    153,001.20x = 15,776,723,531.52
  5. Step 5: Solve for x
    x = 15,776,723,531.52/153,001.20
  6. Step 6: Final answer
    x = 103,115.03

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1.5x scale

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.