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Finding the Fourth Proportional to 144,586.67, 199,521.78 and 80,912.17

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Solution

The fourth proportional to 144,586.67, 199,521.78 and 80,912.17 is: 111,654.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,586.67 : 199,521.78 = 80,912.17 : x
  2. Step 2: Convert to fraction form
    144,586.67/199,521.78 = 80,912.17/x
  3. Step 3: Cross multiply
    144,586.67x = 199,521.78 × 80,912.17
  4. Step 4: Simplify right side
    144,586.67x = 16,143,740,182.06
  5. Step 5: Solve for x
    x = 16,143,740,182.06/144,586.67
  6. Step 6: Final answer
    x = 111,654.42

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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.