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Finding the Fourth Proportional to 148,491.69, 204,920.06 and 80,508.80

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Solution

The fourth proportional to 148,491.69, 204,920.06 and 80,508.80 is: 111,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,491.69 : 204,920.06 = 80,508.80 : x
  2. Step 2: Convert to fraction form
    148,491.69/204,920.06 = 80,508.80/x
  3. Step 3: Cross multiply
    148,491.69x = 204,920.06 × 80,508.80
  4. Step 4: Simplify right side
    148,491.69x = 16,497,866,699.38
  5. Step 5: Solve for x
    x = 16,497,866,699.38/148,491.69
  6. Step 6: Final answer
    x = 111,102.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.