Home / 137,584.28-189,868.38-80,222.04

Finding the Fourth Proportional to 137,584.28, 189,868.38 and 80,222.04

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Solution

The fourth proportional to 137,584.28, 189,868.38 and 80,222.04 is: 110,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,584.28 : 189,868.38 = 80,222.04 : x
  2. Step 2: Convert to fraction form
    137,584.28/189,868.38 = 80,222.04/x
  3. Step 3: Cross multiply
    137,584.28x = 189,868.38 × 80,222.04
  4. Step 4: Simplify right side
    137,584.28x = 15,231,628,775.10
  5. Step 5: Solve for x
    x = 15,231,628,775.10/137,584.28
  6. Step 6: Final answer
    x = 110,707.62

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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.