Home / 211,935.34-292,469.91-121,290.88

Finding the Fourth Proportional to 211,935.34, 292,469.91 and 121,290.88

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Solution

The fourth proportional to 211,935.34, 292,469.91 and 121,290.88 is: 167,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,935.34 : 292,469.91 = 121,290.88 : x
  2. Step 2: Convert to fraction form
    211,935.34/292,469.91 = 121,290.88/x
  3. Step 3: Cross multiply
    211,935.34x = 292,469.91 × 121,290.88
  4. Step 4: Simplify right side
    211,935.34x = 35,473,932,757.42
  5. Step 5: Solve for x
    x = 35,473,932,757.42/211,935.34
  6. Step 6: Final answer
    x = 167,380.92

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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.