Home / 115,834.14-159,865.11-65,523.42

Finding the Fourth Proportional to 115,834.14, 159,865.11 and 65,523.42

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Solution

The fourth proportional to 115,834.14, 159,865.11 and 65,523.42 is: 90,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,834.14 : 159,865.11 = 65,523.42 : x
  2. Step 2: Convert to fraction form
    115,834.14/159,865.11 = 65,523.42/x
  3. Step 3: Cross multiply
    115,834.14x = 159,865.11 × 65,523.42
  4. Step 4: Simplify right side
    115,834.14x = 10,474,908,745.88
  5. Step 5: Solve for x
    x = 10,474,908,745.88/115,834.14
  6. Step 6: Final answer
    x = 90,430.24

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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.