Home / 177,680.20-266,520.30-72,441.80

Finding the Fourth Proportional to 177,680.20, 266,520.30 and 72,441.80

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Solution

The fourth proportional to 177,680.20, 266,520.30 and 72,441.80 is: 108,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,680.20 : 266,520.30 = 72,441.80 : x
  2. Step 2: Convert to fraction form
    177,680.20/266,520.30 = 72,441.80/x
  3. Step 3: Cross multiply
    177,680.20x = 266,520.30 × 72,441.80
  4. Step 4: Simplify right side
    177,680.20x = 19,307,210,268.54
  5. Step 5: Solve for x
    x = 19,307,210,268.54/177,680.20
  6. Step 6: Final answer
    x = 108,662.70

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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.