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Finding the Fourth Proportional to 144,304.59, 199,136.89 and 80,654.69

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Solution

The fourth proportional to 144,304.59, 199,136.89 and 80,654.69 is: 111,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,304.59 : 199,136.89 = 80,654.69 : x
  2. Step 2: Convert to fraction form
    144,304.59/199,136.89 = 80,654.69/x
  3. Step 3: Cross multiply
    144,304.59x = 199,136.89 × 80,654.69
  4. Step 4: Simplify right side
    144,304.59x = 16,061,324,130.51
  5. Step 5: Solve for x
    x = 16,061,324,130.51/144,304.59
  6. Step 6: Final answer
    x = 111,301.55

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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.