Home / 217,204.72-299,750.62-121,707.88

Finding the Fourth Proportional to 217,204.72, 299,750.62 and 121,707.88

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Solution

The fourth proportional to 217,204.72, 299,750.62 and 121,707.88 is: 167,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,204.72 : 299,750.62 = 121,707.88 : x
  2. Step 2: Convert to fraction form
    217,204.72/299,750.62 = 121,707.88/x
  3. Step 3: Cross multiply
    217,204.72x = 299,750.62 × 121,707.88
  4. Step 4: Simplify right side
    217,204.72x = 36,482,012,488.89
  5. Step 5: Solve for x
    x = 36,482,012,488.89/217,204.72
  6. Step 6: Final answer
    x = 167,961.42

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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.