Home / 106,879.11-147,450.31-61,532.77

Finding the Fourth Proportional to 106,879.11, 147,450.31 and 61,532.77

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Solution

The fourth proportional to 106,879.11, 147,450.31 and 61,532.77 is: 84,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,879.11 : 147,450.31 = 61,532.77 : x
  2. Step 2: Convert to fraction form
    106,879.11/147,450.31 = 61,532.77/x
  3. Step 3: Cross multiply
    106,879.11x = 147,450.31 × 61,532.77
  4. Step 4: Simplify right side
    106,879.11x = 9,073,026,011.66
  5. Step 5: Solve for x
    x = 9,073,026,011.66/106,879.11
  6. Step 6: Final answer
    x = 84,890.55

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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.