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Finding the Fourth Proportional to 109,408.50, 150,983.73 and 59,107.50

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Solution

The fourth proportional to 109,408.50, 150,983.73 and 59,107.50 is: 81,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,408.50 : 150,983.73 = 59,107.50 : x
  2. Step 2: Convert to fraction form
    109,408.50/150,983.73 = 59,107.50/x
  3. Step 3: Cross multiply
    109,408.50x = 150,983.73 × 59,107.50
  4. Step 4: Simplify right side
    109,408.50x = 8,924,270,820.98
  5. Step 5: Solve for x
    x = 8,924,270,820.98/109,408.50
  6. Step 6: Final answer
    x = 81,568.35

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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.