Home / 238,976.72-329,769.72-137,001.20

Finding the Fourth Proportional to 238,976.72, 329,769.72 and 137,001.20

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Solution

The fourth proportional to 238,976.72, 329,769.72 and 137,001.20 is: 189,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,976.72 : 329,769.72 = 137,001.20 : x
  2. Step 2: Convert to fraction form
    238,976.72/329,769.72 = 137,001.20/x
  3. Step 3: Cross multiply
    238,976.72x = 329,769.72 × 137,001.20
  4. Step 4: Simplify right side
    238,976.72x = 45,178,847,363.66
  5. Step 5: Solve for x
    x = 45,178,847,363.66/238,976.72
  6. Step 6: Final answer
    x = 189,051.25

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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.