Home / 238,979.96-329,753.78-136,986.68

Finding the Fourth Proportional to 238,979.96, 329,753.78 and 136,986.68

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Solution

The fourth proportional to 238,979.96, 329,753.78 and 136,986.68 is: 189,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,979.96 : 329,753.78 = 136,986.68 : x
  2. Step 2: Convert to fraction form
    238,979.96/329,753.78 = 136,986.68/x
  3. Step 3: Cross multiply
    238,979.96x = 329,753.78 × 136,986.68
  4. Step 4: Simplify right side
    238,979.96x = 45,171,875,539.65
  5. Step 5: Solve for x
    x = 45,171,875,539.65/238,979.96
  6. Step 6: Final answer
    x = 189,019.51

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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.