Home / 217,376.46-299,974.86-121,881.06

Finding the Fourth Proportional to 217,376.46, 299,974.86 and 121,881.06

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Solution

The fourth proportional to 217,376.46, 299,974.86 and 121,881.06 is: 168,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,376.46 : 299,974.86 = 121,881.06 : x
  2. Step 2: Convert to fraction form
    217,376.46/299,974.86 = 121,881.06/x
  3. Step 3: Cross multiply
    217,376.46x = 299,974.86 × 121,881.06
  4. Step 4: Simplify right side
    217,376.46x = 36,561,253,910.15
  5. Step 5: Solve for x
    x = 36,561,253,910.15/217,376.46
  6. Step 6: Final answer
    x = 168,193.25

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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.