Home / 211,812.72-292,354.44-131,191.92

Finding the Fourth Proportional to 211,812.72, 292,354.44 and 131,191.92

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Solution

The fourth proportional to 211,812.72, 292,354.44 and 131,191.92 is: 181,077.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,812.72 : 292,354.44 = 131,191.92 : x
  2. Step 2: Convert to fraction form
    211,812.72/292,354.44 = 131,191.92/x
  3. Step 3: Cross multiply
    211,812.72x = 292,354.44 × 131,191.92
  4. Step 4: Simplify right side
    211,812.72x = 38,354,540,304.12
  5. Step 5: Solve for x
    x = 38,354,540,304.12/211,812.72
  6. Step 6: Final answer
    x = 181,077.61

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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.