Home / 238,974.92-329,746.80-136,981.61

Finding the Fourth Proportional to 238,974.92, 329,746.80 and 136,981.61

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Solution

The fourth proportional to 238,974.92, 329,746.80 and 136,981.61 is: 189,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,974.92 : 329,746.80 = 136,981.61 : x
  2. Step 2: Convert to fraction form
    238,974.92/329,746.80 = 136,981.61/x
  3. Step 3: Cross multiply
    238,974.92x = 329,746.80 × 136,981.61
  4. Step 4: Simplify right side
    238,974.92x = 45,169,247,556.35
  5. Step 5: Solve for x
    x = 45,169,247,556.35/238,974.92
  6. Step 6: Final answer
    x = 189,012.50

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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.