Home / 144,292.11-199,119.29-80,630.43

Finding the Fourth Proportional to 144,292.11, 199,119.29 and 80,630.43

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Solution

The fourth proportional to 144,292.11, 199,119.29 and 80,630.43 is: 111,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,292.11 : 199,119.29 = 80,630.43 : x
  2. Step 2: Convert to fraction form
    144,292.11/199,119.29 = 80,630.43/x
  3. Step 3: Cross multiply
    144,292.11x = 199,119.29 × 80,630.43
  4. Step 4: Simplify right side
    144,292.11x = 16,055,073,973.99
  5. Step 5: Solve for x
    x = 16,055,073,973.99/144,292.11
  6. Step 6: Final answer
    x = 111,267.86

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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.