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Finding the Fourth Proportional to 117,089.56, 161,584.02 and 63,375.28

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Solution

The fourth proportional to 117,089.56, 161,584.02 and 63,375.28 is: 87,458.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,089.56 : 161,584.02 = 63,375.28 : x
  2. Step 2: Convert to fraction form
    117,089.56/161,584.02 = 63,375.28/x
  3. Step 3: Cross multiply
    117,089.56x = 161,584.02 × 63,375.28
  4. Step 4: Simplify right side
    117,089.56x = 10,240,432,511.03
  5. Step 5: Solve for x
    x = 10,240,432,511.03/117,089.56
  6. Step 6: Final answer
    x = 87,458.12

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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.