Home / 172,724.08-238,359.71-100,141.08

Finding the Fourth Proportional to 172,724.08, 238,359.71 and 100,141.08

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Solution

The fourth proportional to 172,724.08, 238,359.71 and 100,141.08 is: 138,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,724.08 : 238,359.71 = 100,141.08 : x
  2. Step 2: Convert to fraction form
    172,724.08/238,359.71 = 100,141.08/x
  3. Step 3: Cross multiply
    172,724.08x = 238,359.71 × 100,141.08
  4. Step 4: Simplify right side
    172,724.08x = 23,869,597,596.09
  5. Step 5: Solve for x
    x = 23,869,597,596.09/172,724.08
  6. Step 6: Final answer
    x = 138,194.97

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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.