Home / 211,001.20-316,479.96-111,120.88

Finding the Fourth Proportional to 211,001.20, 316,479.96 and 111,120.88

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Solution

The fourth proportional to 211,001.20, 316,479.96 and 111,120.88 is: 166,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,001.20 : 316,479.96 = 111,120.88 : x
  2. Step 2: Convert to fraction form
    211,001.20/316,479.96 = 111,120.88/x
  3. Step 3: Cross multiply
    211,001.20x = 316,479.96 × 111,120.88
  4. Step 4: Simplify right side
    211,001.20x = 35,167,531,657.56
  5. Step 5: Solve for x
    x = 35,167,531,657.56/211,001.20
  6. Step 6: Final answer
    x = 166,669.82

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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.