Home / 98,107.48-135,346.92-61,744.45

Finding the Fourth Proportional to 98,107.48, 135,346.92 and 61,744.45

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Solution

The fourth proportional to 98,107.48, 135,346.92 and 61,744.45 is: 85,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,107.48 : 135,346.92 = 61,744.45 : x
  2. Step 2: Convert to fraction form
    98,107.48/135,346.92 = 61,744.45/x
  3. Step 3: Cross multiply
    98,107.48x = 135,346.92 × 61,744.45
  4. Step 4: Simplify right side
    98,107.48x = 8,356,920,825.87
  5. Step 5: Solve for x
    x = 8,356,920,825.87/98,107.48
  6. Step 6: Final answer
    x = 85,181.29

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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.