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Finding the Fourth Proportional to 122,930.75, 169,614.24 and 75,166.67

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Solution

The fourth proportional to 122,930.75, 169,614.24 and 75,166.67 is: 103,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,930.75 : 169,614.24 = 75,166.67 : x
  2. Step 2: Convert to fraction form
    122,930.75/169,614.24 = 75,166.67/x
  3. Step 3: Cross multiply
    122,930.75x = 169,614.24 × 75,166.67
  4. Step 4: Simplify right side
    122,930.75x = 12,749,336,757.31
  5. Step 5: Solve for x
    x = 12,749,336,757.31/122,930.75
  6. Step 6: Final answer
    x = 103,711.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.