Home / 117,186.28-161,715.78-63,469.96

Finding the Fourth Proportional to 117,186.28, 161,715.78 and 63,469.96

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Solution

The fourth proportional to 117,186.28, 161,715.78 and 63,469.96 is: 87,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,186.28 : 161,715.78 = 63,469.96 : x
  2. Step 2: Convert to fraction form
    117,186.28/161,715.78 = 63,469.96/x
  3. Step 3: Cross multiply
    117,186.28x = 161,715.78 × 63,469.96
  4. Step 4: Simplify right side
    117,186.28x = 10,264,094,087.97
  5. Step 5: Solve for x
    x = 10,264,094,087.97/117,186.28
  6. Step 6: Final answer
    x = 87,587.85

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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.