Home / 144,154.26-198,932.81-80,492.02

Finding the Fourth Proportional to 144,154.26, 198,932.81 and 80,492.02

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Solution

The fourth proportional to 144,154.26, 198,932.81 and 80,492.02 is: 111,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,154.26 : 198,932.81 = 80,492.02 : x
  2. Step 2: Convert to fraction form
    144,154.26/198,932.81 = 80,492.02/x
  3. Step 3: Cross multiply
    144,154.26x = 198,932.81 × 80,492.02
  4. Step 4: Simplify right side
    144,154.26x = 16,012,503,721.18
  5. Step 5: Solve for x
    x = 16,012,503,721.18/144,154.26
  6. Step 6: Final answer
    x = 111,078.95

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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.