Home / 211,939.38-318,018.17-117,151.96

Finding the Fourth Proportional to 211,939.38, 318,018.17 and 117,151.96

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Solution

The fourth proportional to 211,939.38, 318,018.17 and 117,151.96 is: 175,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,939.38 : 318,018.17 = 117,151.96 : x
  2. Step 2: Convert to fraction form
    211,939.38/318,018.17 = 117,151.96/x
  3. Step 3: Cross multiply
    211,939.38x = 318,018.17 × 117,151.96
  4. Step 4: Simplify right side
    211,939.38x = 37,256,451,931.11
  5. Step 5: Solve for x
    x = 37,256,451,931.11/211,939.38
  6. Step 6: Final answer
    x = 175,788.25

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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.