Home / 107,963.28-161,964.36-51,755.76

Finding the Fourth Proportional to 107,963.28, 161,964.36 and 51,755.76

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Solution

The fourth proportional to 107,963.28, 161,964.36 and 51,755.76 is: 77,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,963.28 : 161,964.36 = 51,755.76 : x
  2. Step 2: Convert to fraction form
    107,963.28/161,964.36 = 51,755.76/x
  3. Step 3: Cross multiply
    107,963.28x = 161,964.36 × 51,755.76
  4. Step 4: Simplify right side
    107,963.28x = 8,382,588,544.71
  5. Step 5: Solve for x
    x = 8,382,588,544.71/107,963.28
  6. Step 6: Final answer
    x = 77,642.96

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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.