Home / 101,781.11-140,365.91-63,544.15

Finding the Fourth Proportional to 101,781.11, 140,365.91 and 63,544.15

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Solution

The fourth proportional to 101,781.11, 140,365.91 and 63,544.15 is: 87,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,781.11 : 140,365.91 = 63,544.15 : x
  2. Step 2: Convert to fraction form
    101,781.11/140,365.91 = 63,544.15/x
  3. Step 3: Cross multiply
    101,781.11x = 140,365.91 × 63,544.15
  4. Step 4: Simplify right side
    101,781.11x = 8,919,431,984.69
  5. Step 5: Solve for x
    x = 8,919,431,984.69/101,781.11
  6. Step 6: Final answer
    x = 87,633.47

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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.