Home / 120,822.92-166,731-67,111.37

Finding the Fourth Proportional to 120,822.92, 166,731 and 67,111.37

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Solution

The fourth proportional to 120,822.92, 166,731 and 67,111.37 is: 92,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,822.92 : 166,731 = 67,111.37 : x
  2. Step 2: Convert to fraction form
    120,822.92/166,731 = 67,111.37/x
  3. Step 3: Cross multiply
    120,822.92x = 166,731 × 67,111.37
  4. Step 4: Simplify right side
    120,822.92x = 11,189,544,997.82
  5. Step 5: Solve for x
    x = 11,189,544,997.82/120,822.92
  6. Step 6: Final answer
    x = 92,611.12

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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.