Home / 105,201.15-158,035.26-65,249.66

Finding the Fourth Proportional to 105,201.15, 158,035.26 and 65,249.66

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Solution

The fourth proportional to 105,201.15, 158,035.26 and 65,249.66 is: 98,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,201.15 : 158,035.26 = 65,249.66 : x
  2. Step 2: Convert to fraction form
    105,201.15/158,035.26 = 65,249.66/x
  3. Step 3: Cross multiply
    105,201.15x = 158,035.26 × 65,249.66
  4. Step 4: Simplify right side
    105,201.15x = 10,311,747,622.79
  5. Step 5: Solve for x
    x = 10,311,747,622.79/105,201.15
  6. Step 6: Final answer
    x = 98,019.35

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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.