Home / 120,491.73-166,279.02-66,777.66

Finding the Fourth Proportional to 120,491.73, 166,279.02 and 66,777.66

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Solution

The fourth proportional to 120,491.73, 166,279.02 and 66,777.66 is: 92,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,491.73 : 166,279.02 = 66,777.66 : x
  2. Step 2: Convert to fraction form
    120,491.73/166,279.02 = 66,777.66/x
  3. Step 3: Cross multiply
    120,491.73x = 166,279.02 × 66,777.66
  4. Step 4: Simplify right side
    120,491.73x = 11,103,723,862.69
  5. Step 5: Solve for x
    x = 11,103,723,862.69/120,491.73
  6. Step 6: Final answer
    x = 92,153.41

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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.