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Finding the Fourth Proportional to 120,408.66, 166,162.08 and 65,960.37

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Solution

The fourth proportional to 120,408.66, 166,162.08 and 65,960.37 is: 91,024.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,408.66 : 166,162.08 = 65,960.37 : x
  2. Step 2: Convert to fraction form
    120,408.66/166,162.08 = 65,960.37/x
  3. Step 3: Cross multiply
    120,408.66x = 166,162.08 × 65,960.37
  4. Step 4: Simplify right side
    120,408.66x = 10,960,112,276.77
  5. Step 5: Solve for x
    x = 10,960,112,276.77/120,408.66
  6. Step 6: Final answer
    x = 91,024.29

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1.5x scale

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.