Home / 120,521.50-166,302.21-66,806.50

Finding the Fourth Proportional to 120,521.50, 166,302.21 and 66,806.50

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Solution

The fourth proportional to 120,521.50, 166,302.21 and 66,806.50 is: 92,183.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,521.50 : 166,302.21 = 66,806.50 : x
  2. Step 2: Convert to fraction form
    120,521.50/166,302.21 = 66,806.50/x
  3. Step 3: Cross multiply
    120,521.50x = 166,302.21 × 66,806.50
  4. Step 4: Simplify right side
    120,521.50x = 11,110,068,592.37
  5. Step 5: Solve for x
    x = 11,110,068,592.37/120,521.50
  6. Step 6: Final answer
    x = 92,183.29

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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.