Home / 152,991.20-229,535.40-68,718.80

Finding the Fourth Proportional to 152,991.20, 229,535.40 and 68,718.80

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Solution

The fourth proportional to 152,991.20, 229,535.40 and 68,718.80 is: 103,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,991.20 : 229,535.40 = 68,718.80 : x
  2. Step 2: Convert to fraction form
    152,991.20/229,535.40 = 68,718.80/x
  3. Step 3: Cross multiply
    152,991.20x = 229,535.40 × 68,718.80
  4. Step 4: Simplify right side
    152,991.20x = 15,773,397,245.52
  5. Step 5: Solve for x
    x = 15,773,397,245.52/152,991.20
  6. Step 6: Final answer
    x = 103,100.03

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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.