Home / 120,537.45-166,477.86-82,231.22

Finding the Fourth Proportional to 120,537.45, 166,477.86 and 82,231.22

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Solution

The fourth proportional to 120,537.45, 166,477.86 and 82,231.22 is: 113,571.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,537.45 : 166,477.86 = 82,231.22 : x
  2. Step 2: Convert to fraction form
    120,537.45/166,477.86 = 82,231.22/x
  3. Step 3: Cross multiply
    120,537.45x = 166,477.86 × 82,231.22
  4. Step 4: Simplify right side
    120,537.45x = 13,689,677,946.98
  5. Step 5: Solve for x
    x = 13,689,677,946.98/120,537.45
  6. Step 6: Final answer
    x = 113,571.99

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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.