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Finding the Fourth Proportional to 144,332, 199,185.11 and 79,800.05

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Solution

The fourth proportional to 144,332, 199,185.11 and 79,800.05 is: 110,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,332 : 199,185.11 = 79,800.05 : x
  2. Step 2: Convert to fraction form
    144,332/199,185.11 = 79,800.05/x
  3. Step 3: Cross multiply
    144,332x = 199,185.11 × 79,800.05
  4. Step 4: Simplify right side
    144,332x = 15,894,981,737.26
  5. Step 5: Solve for x
    x = 15,894,981,737.26/144,332
  6. Step 6: Final answer
    x = 110,127.91

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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.