Home / 120,579.93-166,392.20-66,862.96

Finding the Fourth Proportional to 120,579.93, 166,392.20 and 66,862.96

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Solution

The fourth proportional to 120,579.93, 166,392.20 and 66,862.96 is: 92,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,579.93 : 166,392.20 = 66,862.96 : x
  2. Step 2: Convert to fraction form
    120,579.93/166,392.20 = 66,862.96/x
  3. Step 3: Cross multiply
    120,579.93x = 166,392.20 × 66,862.96
  4. Step 4: Simplify right side
    120,579.93x = 11,125,474,470.61
  5. Step 5: Solve for x
    x = 11,125,474,470.61/120,579.93
  6. Step 6: Final answer
    x = 92,266.39

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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.