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Finding the Fourth Proportional to 179,668.80, 269,632.80 and 100,699.20

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Solution

The fourth proportional to 179,668.80, 269,632.80 and 100,699.20 is: 151,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,668.80 : 269,632.80 = 100,699.20 : x
  2. Step 2: Convert to fraction form
    179,668.80/269,632.80 = 100,699.20/x
  3. Step 3: Cross multiply
    179,668.80x = 269,632.80 × 100,699.20
  4. Step 4: Simplify right side
    179,668.80x = 27,151,807,253.76
  5. Step 5: Solve for x
    x = 27,151,807,253.76/179,668.80
  6. Step 6: Final answer
    x = 151,121.44

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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.