Home / 144,084.57-198,812.92-80,422.35

Finding the Fourth Proportional to 144,084.57, 198,812.92 and 80,422.35

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Solution

The fourth proportional to 144,084.57, 198,812.92 and 80,422.35 is: 110,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,084.57 : 198,812.92 = 80,422.35 : x
  2. Step 2: Convert to fraction form
    144,084.57/198,812.92 = 80,422.35/x
  3. Step 3: Cross multiply
    144,084.57x = 198,812.92 × 80,422.35
  4. Step 4: Simplify right side
    144,084.57x = 15,989,002,236.76
  5. Step 5: Solve for x
    x = 15,989,002,236.76/144,084.57
  6. Step 6: Final answer
    x = 110,969.57

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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.