Home / 120,463.11-166,236.63-66,747.96

Finding the Fourth Proportional to 120,463.11, 166,236.63 and 66,747.96

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Solution

The fourth proportional to 120,463.11, 166,236.63 and 66,747.96 is: 92,110.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,463.11 : 166,236.63 = 66,747.96 : x
  2. Step 2: Convert to fraction form
    120,463.11/166,236.63 = 66,747.96/x
  3. Step 3: Cross multiply
    120,463.11x = 166,236.63 × 66,747.96
  4. Step 4: Simplify right side
    120,463.11x = 11,095,955,929.77
  5. Step 5: Solve for x
    x = 11,095,955,929.77/120,463.11
  6. Step 6: Final answer
    x = 92,110.82

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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.