Home / 117,231.28-161,777.88-63,513.09

Finding the Fourth Proportional to 117,231.28, 161,777.88 and 63,513.09

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Solution

The fourth proportional to 117,231.28, 161,777.88 and 63,513.09 is: 87,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,231.28 : 161,777.88 = 63,513.09 : x
  2. Step 2: Convert to fraction form
    117,231.28/161,777.88 = 63,513.09/x
  3. Step 3: Cross multiply
    117,231.28x = 161,777.88 × 63,513.09
  4. Step 4: Simplify right side
    117,231.28x = 10,275,013,052.45
  5. Step 5: Solve for x
    x = 10,275,013,052.45/117,231.28
  6. Step 6: Final answer
    x = 87,647.37

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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.