Home / 211,105.14-316,658.31-51,180.45

Finding the Fourth Proportional to 211,105.14, 316,658.31 and 51,180.45

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Solution

The fourth proportional to 211,105.14, 316,658.31 and 51,180.45 is: 76,770.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,105.14 : 316,658.31 = 51,180.45 : x
  2. Step 2: Convert to fraction form
    211,105.14/316,658.31 = 51,180.45/x
  3. Step 3: Cross multiply
    211,105.14x = 316,658.31 × 51,180.45
  4. Step 4: Simplify right side
    211,105.14x = 16,206,714,802.04
  5. Step 5: Solve for x
    x = 16,206,714,802.04/211,105.14
  6. Step 6: Final answer
    x = 76,770.82

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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.