Home / 90,220.23-135,344.01-65,447.21

Finding the Fourth Proportional to 90,220.23, 135,344.01 and 65,447.21

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Solution

The fourth proportional to 90,220.23, 135,344.01 and 65,447.21 is: 98,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,220.23 : 135,344.01 = 65,447.21 : x
  2. Step 2: Convert to fraction form
    90,220.23/135,344.01 = 65,447.21/x
  3. Step 3: Cross multiply
    90,220.23x = 135,344.01 × 65,447.21
  4. Step 4: Simplify right side
    90,220.23x = 8,857,888,183.07
  5. Step 5: Solve for x
    x = 8,857,888,183.07/90,220.23
  6. Step 6: Final answer
    x = 98,180.73

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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.