Home / 98,204.82-135,540.31-57,916.23

Finding the Fourth Proportional to 98,204.82, 135,540.31 and 57,916.23

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Solution

The fourth proportional to 98,204.82, 135,540.31 and 57,916.23 is: 79,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,204.82 : 135,540.31 = 57,916.23 : x
  2. Step 2: Convert to fraction form
    98,204.82/135,540.31 = 57,916.23/x
  3. Step 3: Cross multiply
    98,204.82x = 135,540.31 × 57,916.23
  4. Step 4: Simplify right side
    98,204.82x = 7,849,984,149.06
  5. Step 5: Solve for x
    x = 7,849,984,149.06/98,204.82
  6. Step 6: Final answer
    x = 79,934.81

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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.