Home / 207,540.12-286,385.94-122,640.96

Finding the Fourth Proportional to 207,540.12, 286,385.94 and 122,640.96

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Solution

The fourth proportional to 207,540.12, 286,385.94 and 122,640.96 is: 169,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,540.12 : 286,385.94 = 122,640.96 : x
  2. Step 2: Convert to fraction form
    207,540.12/286,385.94 = 122,640.96/x
  3. Step 3: Cross multiply
    207,540.12x = 286,385.94 × 122,640.96
  4. Step 4: Simplify right side
    207,540.12x = 35,122,646,612.10
  5. Step 5: Solve for x
    x = 35,122,646,612.10/207,540.12
  6. Step 6: Final answer
    x = 169,233.05

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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.