Home / 211,154.91-316,546.71-109,739.43

Finding the Fourth Proportional to 211,154.91, 316,546.71 and 109,739.43

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Solution

The fourth proportional to 211,154.91, 316,546.71 and 109,739.43 is: 164,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,154.91 : 316,546.71 = 109,739.43 : x
  2. Step 2: Convert to fraction form
    211,154.91/316,546.71 = 109,739.43/x
  3. Step 3: Cross multiply
    211,154.91x = 316,546.71 × 109,739.43
  4. Step 4: Simplify right side
    211,154.91x = 34,737,655,523.78
  5. Step 5: Solve for x
    x = 34,737,655,523.78/211,154.91
  6. Step 6: Final answer
    x = 164,512.66

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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.