Home / 211,695.17-317,345.90-71,355.38

Finding the Fourth Proportional to 211,695.17, 317,345.90 and 71,355.38

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Solution

The fourth proportional to 211,695.17, 317,345.90 and 71,355.38 is: 106,966.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,695.17 : 317,345.90 = 71,355.38 : x
  2. Step 2: Convert to fraction form
    211,695.17/317,345.90 = 71,355.38/x
  3. Step 3: Cross multiply
    211,695.17x = 317,345.90 × 71,355.38
  4. Step 4: Simplify right side
    211,695.17x = 22,644,335,342.44
  5. Step 5: Solve for x
    x = 22,644,335,342.44/211,695.17
  6. Step 6: Final answer
    x = 106,966.71

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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.