Home / 199,280.96-275,105.91-138,073.57

Finding the Fourth Proportional to 199,280.96, 275,105.91 and 138,073.57

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Solution

The fourth proportional to 199,280.96, 275,105.91 and 138,073.57 is: 190,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,280.96 : 275,105.91 = 138,073.57 : x
  2. Step 2: Convert to fraction form
    199,280.96/275,105.91 = 138,073.57/x
  3. Step 3: Cross multiply
    199,280.96x = 275,105.91 × 138,073.57
  4. Step 4: Simplify right side
    199,280.96x = 37,984,855,121.80
  5. Step 5: Solve for x
    x = 37,984,855,121.80/199,280.96
  6. Step 6: Final answer
    x = 190,609.56

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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.