Home / 144,084.37-198,836.67-80,422.15

Finding the Fourth Proportional to 144,084.37, 198,836.67 and 80,422.15

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Solution

The fourth proportional to 144,084.37, 198,836.67 and 80,422.15 is: 110,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,084.37 : 198,836.67 = 80,422.15 : x
  2. Step 2: Convert to fraction form
    144,084.37/198,836.67 = 80,422.15/x
  3. Step 3: Cross multiply
    144,084.37x = 198,836.67 × 80,422.15
  4. Step 4: Simplify right side
    144,084.37x = 15,990,872,500.24
  5. Step 5: Solve for x
    x = 15,990,872,500.24/144,084.37
  6. Step 6: Final answer
    x = 110,982.70

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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.