Home / 155,680.40-214,844.24-92,072.72

Finding the Fourth Proportional to 155,680.40, 214,844.24 and 92,072.72

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Solution

The fourth proportional to 155,680.40, 214,844.24 and 92,072.72 is: 127,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,680.40 : 214,844.24 = 92,072.72 : x
  2. Step 2: Convert to fraction form
    155,680.40/214,844.24 = 92,072.72/x
  3. Step 3: Cross multiply
    155,680.40x = 214,844.24 × 92,072.72
  4. Step 4: Simplify right side
    155,680.40x = 19,781,293,553.13
  5. Step 5: Solve for x
    x = 19,781,293,553.13/155,680.40
  6. Step 6: Final answer
    x = 127,063.48

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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.