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Finding the Fourth Proportional to 172,994.85, 238,727.48 and 101,422.54

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Solution

The fourth proportional to 172,994.85, 238,727.48 and 101,422.54 is: 139,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,994.85 : 238,727.48 = 101,422.54 : x
  2. Step 2: Convert to fraction form
    172,994.85/238,727.48 = 101,422.54/x
  3. Step 3: Cross multiply
    172,994.85x = 238,727.48 × 101,422.54
  4. Step 4: Simplify right side
    172,994.85x = 24,212,346,285.47
  5. Step 5: Solve for x
    x = 24,212,346,285.47/172,994.85
  6. Step 6: Final answer
    x = 139,959.93

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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.