Home / 109,591.46-164,138.06-85,750.44

Finding the Fourth Proportional to 109,591.46, 164,138.06 and 85,750.44

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Solution

The fourth proportional to 109,591.46, 164,138.06 and 85,750.44 is: 128,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,591.46 : 164,138.06 = 85,750.44 : x
  2. Step 2: Convert to fraction form
    109,591.46/164,138.06 = 85,750.44/x
  3. Step 3: Cross multiply
    109,591.46x = 164,138.06 × 85,750.44
  4. Step 4: Simplify right side
    109,591.46x = 14,074,910,865.75
  5. Step 5: Solve for x
    x = 14,074,910,865.75/109,591.46
  6. Step 6: Final answer
    x = 128,430.73

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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.