Home / 117,195.28-161,729.19-63,480.43

Finding the Fourth Proportional to 117,195.28, 161,729.19 and 63,480.43

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Solution

The fourth proportional to 117,195.28, 161,729.19 and 63,480.43 is: 87,602.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,195.28 : 161,729.19 = 63,480.43 : x
  2. Step 2: Convert to fraction form
    117,195.28/161,729.19 = 63,480.43/x
  3. Step 3: Cross multiply
    117,195.28x = 161,729.19 × 63,480.43
  4. Step 4: Simplify right side
    117,195.28x = 10,266,638,524.75
  5. Step 5: Solve for x
    x = 10,266,638,524.75/117,195.28
  6. Step 6: Final answer
    x = 87,602.83

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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.