Home / 211,469.43-317,130.36-85,076.89

Finding the Fourth Proportional to 211,469.43, 317,130.36 and 85,076.89

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Solution

The fourth proportional to 211,469.43, 317,130.36 and 85,076.89 is: 127,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,469.43 : 317,130.36 = 85,076.89 : x
  2. Step 2: Convert to fraction form
    211,469.43/317,130.36 = 85,076.89/x
  3. Step 3: Cross multiply
    211,469.43x = 317,130.36 × 85,076.89
  4. Step 4: Simplify right side
    211,469.43x = 26,980,464,753.38
  5. Step 5: Solve for x
    x = 26,980,464,753.38/211,469.43
  6. Step 6: Final answer
    x = 127,585.65

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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.