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Finding the Fourth Proportional to 90,107.60, 135,163.20 and 23,543.60

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Solution

The fourth proportional to 90,107.60, 135,163.20 and 23,543.60 is: 35,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,107.60 : 135,163.20 = 23,543.60 : x
  2. Step 2: Convert to fraction form
    90,107.60/135,163.20 = 23,543.60/x
  3. Step 3: Cross multiply
    90,107.60x = 135,163.20 × 23,543.60
  4. Step 4: Simplify right side
    90,107.60x = 3,182,228,315.52
  5. Step 5: Solve for x
    x = 3,182,228,315.52/90,107.60
  6. Step 6: Final answer
    x = 35,315.87

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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.