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Finding the Fourth Proportional to 144,033.21, 198,801.42 and 87,491.97

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Solution

The fourth proportional to 144,033.21, 198,801.42 and 87,491.97 is: 120,760.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,033.21 : 198,801.42 = 87,491.97 : x
  2. Step 2: Convert to fraction form
    144,033.21/198,801.42 = 87,491.97/x
  3. Step 3: Cross multiply
    144,033.21x = 198,801.42 × 87,491.97
  4. Step 4: Simplify right side
    144,033.21x = 17,393,527,874.60
  5. Step 5: Solve for x
    x = 17,393,527,874.60/144,033.21
  6. Step 6: Final answer
    x = 120,760.54

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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.