Home / 231,537.78-319,513.41-130,937.94

Finding the Fourth Proportional to 231,537.78, 319,513.41 and 130,937.94

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Solution

The fourth proportional to 231,537.78, 319,513.41 and 130,937.94 is: 180,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,537.78 : 319,513.41 = 130,937.94 : x
  2. Step 2: Convert to fraction form
    231,537.78/319,513.41 = 130,937.94/x
  3. Step 3: Cross multiply
    231,537.78x = 319,513.41 × 130,937.94
  4. Step 4: Simplify right side
    231,537.78x = 41,836,427,707.78
  5. Step 5: Solve for x
    x = 41,836,427,707.78/231,537.78
  6. Step 6: Final answer
    x = 180,689.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.