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Finding the Fourth Proportional to 107,119.50, 160,453.20 and 85,944.90

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Solution

The fourth proportional to 107,119.50, 160,453.20 and 85,944.90 is: 128,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,119.50 : 160,453.20 = 85,944.90 : x
  2. Step 2: Convert to fraction form
    107,119.50/160,453.20 = 85,944.90/x
  3. Step 3: Cross multiply
    107,119.50x = 160,453.20 × 85,944.90
  4. Step 4: Simplify right side
    107,119.50x = 13,790,134,228.68
  5. Step 5: Solve for x
    x = 13,790,134,228.68/107,119.50
  6. Step 6: Final answer
    x = 128,735.98

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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.