Home / 90,151.04-135,234.26-23,591.12

Finding the Fourth Proportional to 90,151.04, 135,234.26 and 23,591.12

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Solution

The fourth proportional to 90,151.04, 135,234.26 and 23,591.12 is: 35,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,151.04 : 135,234.26 = 23,591.12 : x
  2. Step 2: Convert to fraction form
    90,151.04/135,234.26 = 23,591.12/x
  3. Step 3: Cross multiply
    90,151.04x = 135,234.26 × 23,591.12
  4. Step 4: Simplify right side
    90,151.04x = 3,190,327,655.77
  5. Step 5: Solve for x
    x = 3,190,327,655.77/90,151.04
  6. Step 6: Final answer
    x = 35,388.69

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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.