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Finding the Fourth Proportional to 117,817.78, 162,583.68 and 64,103.01

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Solution

The fourth proportional to 117,817.78, 162,583.68 and 64,103.01 is: 88,459.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,817.78 : 162,583.68 = 64,103.01 : x
  2. Step 2: Convert to fraction form
    117,817.78/162,583.68 = 64,103.01/x
  3. Step 3: Cross multiply
    117,817.78x = 162,583.68 × 64,103.01
  4. Step 4: Simplify right side
    117,817.78x = 10,422,102,131.44
  5. Step 5: Solve for x
    x = 10,422,102,131.44/117,817.78
  6. Step 6: Final answer
    x = 88,459.51

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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.