Home / 107,716.24-148,323.78-101,403.91

Finding the Fourth Proportional to 107,716.24, 148,323.78 and 101,403.91

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Solution

The fourth proportional to 107,716.24, 148,323.78 and 101,403.91 is: 139,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,716.24 : 148,323.78 = 101,403.91 : x
  2. Step 2: Convert to fraction form
    107,716.24/148,323.78 = 101,403.91/x
  3. Step 3: Cross multiply
    107,716.24x = 148,323.78 × 101,403.91
  4. Step 4: Simplify right side
    107,716.24x = 15,040,611,237.98
  5. Step 5: Solve for x
    x = 15,040,611,237.98/107,716.24
  6. Step 6: Final answer
    x = 139,631.79

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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.