Home / 199,204.14-274,915.32-121,712.96

Finding the Fourth Proportional to 199,204.14, 274,915.32 and 121,712.96

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Solution

The fourth proportional to 199,204.14, 274,915.32 and 121,712.96 is: 167,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,204.14 : 274,915.32 = 121,712.96 : x
  2. Step 2: Convert to fraction form
    199,204.14/274,915.32 = 121,712.96/x
  3. Step 3: Cross multiply
    199,204.14x = 274,915.32 × 121,712.96
  4. Step 4: Simplify right side
    199,204.14x = 33,460,757,346.55
  5. Step 5: Solve for x
    x = 33,460,757,346.55/199,204.14
  6. Step 6: Final answer
    x = 167,972.20

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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.