Home / 112,866.35-155,757.31-61,883.73

Finding the Fourth Proportional to 112,866.35, 155,757.31 and 61,883.73

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Solution

The fourth proportional to 112,866.35, 155,757.31 and 61,883.73 is: 85,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,866.35 : 155,757.31 = 61,883.73 : x
  2. Step 2: Convert to fraction form
    112,866.35/155,757.31 = 61,883.73/x
  3. Step 3: Cross multiply
    112,866.35x = 155,757.31 × 61,883.73
  4. Step 4: Simplify right side
    112,866.35x = 9,638,843,162.86
  5. Step 5: Solve for x
    x = 9,638,843,162.86/112,866.35
  6. Step 6: Final answer
    x = 85,400.51

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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.