Home / 117,287.22-161,855.76-63,571.80

Finding the Fourth Proportional to 117,287.22, 161,855.76 and 63,571.80

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Solution

The fourth proportional to 117,287.22, 161,855.76 and 63,571.80 is: 87,728.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,287.22 : 161,855.76 = 63,571.80 : x
  2. Step 2: Convert to fraction form
    117,287.22/161,855.76 = 63,571.80/x
  3. Step 3: Cross multiply
    117,287.22x = 161,855.76 × 63,571.80
  4. Step 4: Simplify right side
    117,287.22x = 10,289,462,003.57
  5. Step 5: Solve for x
    x = 10,289,462,003.57/117,287.22
  6. Step 6: Final answer
    x = 87,728.76

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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.