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Finding the Fourth Proportional to 144,073.62, 198,840.40 and 80,424.62

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Solution

The fourth proportional to 144,073.62, 198,840.40 and 80,424.62 is: 110,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,073.62 : 198,840.40 = 80,424.62 : x
  2. Step 2: Convert to fraction form
    144,073.62/198,840.40 = 80,424.62/x
  3. Step 3: Cross multiply
    144,073.62x = 198,840.40 × 80,424.62
  4. Step 4: Simplify right side
    144,073.62x = 15,991,663,610.65
  5. Step 5: Solve for x
    x = 15,991,663,610.65/144,073.62
  6. Step 6: Final answer
    x = 110,996.47

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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.