Home / 144,301.45-199,135.42-80,639.23

Finding the Fourth Proportional to 144,301.45, 199,135.42 and 80,639.23

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Solution

The fourth proportional to 144,301.45, 199,135.42 and 80,639.23 is: 111,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,301.45 : 199,135.42 = 80,639.23 : x
  2. Step 2: Convert to fraction form
    144,301.45/199,135.42 = 80,639.23/x
  3. Step 3: Cross multiply
    144,301.45x = 199,135.42 × 80,639.23
  4. Step 4: Simplify right side
    144,301.45x = 16,058,126,934.53
  5. Step 5: Solve for x
    x = 16,058,126,934.53/144,301.45
  6. Step 6: Final answer
    x = 111,281.81

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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.