Home / 129,091.28-193,554.04-50,121.36

Finding the Fourth Proportional to 129,091.28, 193,554.04 and 50,121.36

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Solution

The fourth proportional to 129,091.28, 193,554.04 and 50,121.36 is: 75,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,091.28 : 193,554.04 = 50,121.36 : x
  2. Step 2: Convert to fraction form
    129,091.28/193,554.04 = 50,121.36/x
  3. Step 3: Cross multiply
    129,091.28x = 193,554.04 × 50,121.36
  4. Step 4: Simplify right side
    129,091.28x = 9,701,191,718.29
  5. Step 5: Solve for x
    x = 9,701,191,718.29/129,091.28
  6. Step 6: Final answer
    x = 75,149.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.