Home / 236,165.88-325,902.38-128,738

Finding the Fourth Proportional to 236,165.88, 325,902.38 and 128,738

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Solution

The fourth proportional to 236,165.88, 325,902.38 and 128,738 is: 177,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,165.88 : 325,902.38 = 128,738 : x
  2. Step 2: Convert to fraction form
    236,165.88/325,902.38 = 128,738/x
  3. Step 3: Cross multiply
    236,165.88x = 325,902.38 × 128,738
  4. Step 4: Simplify right side
    236,165.88x = 41,956,020,596.44
  5. Step 5: Solve for x
    x = 41,956,020,596.44/236,165.88
  6. Step 6: Final answer
    x = 177,654.88

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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.