Home / 101,584.89-140,140.62-65,786.43

Finding the Fourth Proportional to 101,584.89, 140,140.62 and 65,786.43

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Solution

The fourth proportional to 101,584.89, 140,140.62 and 65,786.43 is: 90,755.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,584.89 : 140,140.62 = 65,786.43 : x
  2. Step 2: Convert to fraction form
    101,584.89/140,140.62 = 65,786.43/x
  3. Step 3: Cross multiply
    101,584.89x = 140,140.62 × 65,786.43
  4. Step 4: Simplify right side
    101,584.89x = 9,219,351,087.79
  5. Step 5: Solve for x
    x = 9,219,351,087.79/101,584.89
  6. Step 6: Final answer
    x = 90,755.14

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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.