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Finding the Fourth Proportional to 107,350.60, 161,025.90 and 82,438.60

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Solution

The fourth proportional to 107,350.60, 161,025.90 and 82,438.60 is: 123,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,350.60 : 161,025.90 = 82,438.60 : x
  2. Step 2: Convert to fraction form
    107,350.60/161,025.90 = 82,438.60/x
  3. Step 3: Cross multiply
    107,350.60x = 161,025.90 × 82,438.60
  4. Step 4: Simplify right side
    107,350.60x = 13,274,749,759.74
  5. Step 5: Solve for x
    x = 13,274,749,759.74/107,350.60
  6. Step 6: Final answer
    x = 123,657.90

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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.