Home / 215,462.07-322,405.78-126,757.35

Finding the Fourth Proportional to 215,462.07, 322,405.78 and 126,757.35

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Solution

The fourth proportional to 215,462.07, 322,405.78 and 126,757.35 is: 189,672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,462.07 : 322,405.78 = 126,757.35 : x
  2. Step 2: Convert to fraction form
    215,462.07/322,405.78 = 126,757.35/x
  3. Step 3: Cross multiply
    215,462.07x = 322,405.78 × 126,757.35
  4. Step 4: Simplify right side
    215,462.07x = 40,867,303,783.79
  5. Step 5: Solve for x
    x = 40,867,303,783.79/215,462.07
  6. Step 6: Final answer
    x = 189,672.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.