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Finding the Fourth Proportional to 101,736, 140,362.08 and 61,434.46

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Solution

The fourth proportional to 101,736, 140,362.08 and 61,434.46 is: 84,759.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,736 : 140,362.08 = 61,434.46 : x
  2. Step 2: Convert to fraction form
    101,736/140,362.08 = 61,434.46/x
  3. Step 3: Cross multiply
    101,736x = 140,362.08 × 61,434.46
  4. Step 4: Simplify right side
    101,736x = 8,623,068,589.28
  5. Step 5: Solve for x
    x = 8,623,068,589.28/101,736
  6. Step 6: Final answer
    x = 84,759.27

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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.