Home / 172,724.31-238,360.03-100,141.31

Finding the Fourth Proportional to 172,724.31, 238,360.03 and 100,141.31

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Solution

The fourth proportional to 172,724.31, 238,360.03 and 100,141.31 is: 138,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,724.31 : 238,360.03 = 100,141.31 : x
  2. Step 2: Convert to fraction form
    172,724.31/238,360.03 = 100,141.31/x
  3. Step 3: Cross multiply
    172,724.31x = 238,360.03 × 100,141.31
  4. Step 4: Simplify right side
    172,724.31x = 23,869,685,655.84
  5. Step 5: Solve for x
    x = 23,869,685,655.84/172,724.31
  6. Step 6: Final answer
    x = 138,195.29

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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.