Home / 238,974.26-329,745.87-136,980.95

Finding the Fourth Proportional to 238,974.26, 329,745.87 and 136,980.95

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Solution

The fourth proportional to 238,974.26, 329,745.87 and 136,980.95 is: 189,011.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,974.26 : 329,745.87 = 136,980.95 : x
  2. Step 2: Convert to fraction form
    238,974.26/329,745.87 = 136,980.95/x
  3. Step 3: Cross multiply
    238,974.26x = 329,745.87 × 136,980.95
  4. Step 4: Simplify right side
    238,974.26x = 45,168,900,882.45
  5. Step 5: Solve for x
    x = 45,168,900,882.45/238,974.26
  6. Step 6: Final answer
    x = 189,011.58

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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.