Home / 172,939.35-238,620-104,992.11

Finding the Fourth Proportional to 172,939.35, 238,620 and 104,992.11

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Solution

The fourth proportional to 172,939.35, 238,620 and 104,992.11 is: 144,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,939.35 : 238,620 = 104,992.11 : x
  2. Step 2: Convert to fraction form
    172,939.35/238,620 = 104,992.11/x
  3. Step 3: Cross multiply
    172,939.35x = 238,620 × 104,992.11
  4. Step 4: Simplify right side
    172,939.35x = 25,053,217,288.20
  5. Step 5: Solve for x
    x = 25,053,217,288.20/172,939.35
  6. Step 6: Final answer
    x = 144,867.07

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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.