Home / 120,408.16-166,165.94-68,724.22

Finding the Fourth Proportional to 120,408.16, 166,165.94 and 68,724.22

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Solution

The fourth proportional to 120,408.16, 166,165.94 and 68,724.22 is: 94,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,408.16 : 166,165.94 = 68,724.22 : x
  2. Step 2: Convert to fraction form
    120,408.16/166,165.94 = 68,724.22/x
  3. Step 3: Cross multiply
    120,408.16x = 166,165.94 × 68,724.22
  4. Step 4: Simplify right side
    120,408.16x = 11,419,624,373.46
  5. Step 5: Solve for x
    x = 11,419,624,373.46/120,408.16
  6. Step 6: Final answer
    x = 94,840.95

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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.