Home / 105,764.20-158,605.14-53,137

Finding the Fourth Proportional to 105,764.20, 158,605.14 and 53,137

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Solution

The fourth proportional to 105,764.20, 158,605.14 and 53,137 is: 79,684.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,764.20 : 158,605.14 = 53,137 : x
  2. Step 2: Convert to fraction form
    105,764.20/158,605.14 = 53,137/x
  3. Step 3: Cross multiply
    105,764.20x = 158,605.14 × 53,137
  4. Step 4: Simplify right side
    105,764.20x = 8,427,801,324.18
  5. Step 5: Solve for x
    x = 8,427,801,324.18/105,764.20
  6. Step 6: Final answer
    x = 79,684.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.