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Finding the Fourth Proportional to 122,995.92, 169,740.68 and 75,234.32

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Solution

The fourth proportional to 122,995.92, 169,740.68 and 75,234.32 is: 103,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,995.92 : 169,740.68 = 75,234.32 : x
  2. Step 2: Convert to fraction form
    122,995.92/169,740.68 = 75,234.32/x
  3. Step 3: Cross multiply
    122,995.92x = 169,740.68 × 75,234.32
  4. Step 4: Simplify right side
    122,995.92x = 12,770,324,636.14
  5. Step 5: Solve for x
    x = 12,770,324,636.14/122,995.92
  6. Step 6: Final answer
    x = 103,827.22

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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.