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Finding the Fourth Proportional to 117,089.55, 161,583.12 and 63,375.48

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Solution

The fourth proportional to 117,089.55, 161,583.12 and 63,375.48 is: 87,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,089.55 : 161,583.12 = 63,375.48 : x
  2. Step 2: Convert to fraction form
    117,089.55/161,583.12 = 63,375.48/x
  3. Step 3: Cross multiply
    117,089.55x = 161,583.12 × 63,375.48
  4. Step 4: Simplify right side
    117,089.55x = 10,240,407,789.90
  5. Step 5: Solve for x
    x = 10,240,407,789.90/117,089.55
  6. Step 6: Final answer
    x = 87,457.91

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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.