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Finding the Fourth Proportional to 104,268, 143,889.03 and 56,520.12

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Solution

The fourth proportional to 104,268, 143,889.03 and 56,520.12 is: 77,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,268 : 143,889.03 = 56,520.12 : x
  2. Step 2: Convert to fraction form
    104,268/143,889.03 = 56,520.12/x
  3. Step 3: Cross multiply
    104,268x = 143,889.03 × 56,520.12
  4. Step 4: Simplify right side
    104,268x = 8,132,625,242.28
  5. Step 5: Solve for x
    x = 8,132,625,242.28/104,268
  6. Step 6: Final answer
    x = 77,997.33

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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.