Home / 217,851.11-300,628.52-121,052.45

Finding the Fourth Proportional to 217,851.11, 300,628.52 and 121,052.45

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Solution

The fourth proportional to 217,851.11, 300,628.52 and 121,052.45 is: 167,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,851.11 : 300,628.52 = 121,052.45 : x
  2. Step 2: Convert to fraction form
    217,851.11/300,628.52 = 121,052.45/x
  3. Step 3: Cross multiply
    217,851.11x = 300,628.52 × 121,052.45
  4. Step 4: Simplify right side
    217,851.11x = 36,391,816,777.47
  5. Step 5: Solve for x
    x = 36,391,816,777.47/217,851.11
  6. Step 6: Final answer
    x = 167,049.03

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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.