Home / 232,276.12-320,565.54-136,780.78

Finding the Fourth Proportional to 232,276.12, 320,565.54 and 136,780.78

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Solution

The fourth proportional to 232,276.12, 320,565.54 and 136,780.78 is: 188,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,276.12 : 320,565.54 = 136,780.78 : x
  2. Step 2: Convert to fraction form
    232,276.12/320,565.54 = 136,780.78/x
  3. Step 3: Cross multiply
    232,276.12x = 320,565.54 × 136,780.78
  4. Step 4: Simplify right side
    232,276.12x = 43,847,204,602.32
  5. Step 5: Solve for x
    x = 43,847,204,602.32/232,276.12
  6. Step 6: Final answer
    x = 188,771.90

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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.