Home / 211,667.33-317,419.64-76,691.73

Finding the Fourth Proportional to 211,667.33, 317,419.64 and 76,691.73

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Solution

The fourth proportional to 211,667.33, 317,419.64 and 76,691.73 is: 115,008.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,667.33 : 317,419.64 = 76,691.73 : x
  2. Step 2: Convert to fraction form
    211,667.33/317,419.64 = 76,691.73/x
  3. Step 3: Cross multiply
    211,667.33x = 317,419.64 × 76,691.73
  4. Step 4: Simplify right side
    211,667.33x = 24,343,461,067.94
  5. Step 5: Solve for x
    x = 24,343,461,067.94/211,667.33
  6. Step 6: Final answer
    x = 115,008.12

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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.