Home / 120,883.78-166,818.18-67,166.74

Finding the Fourth Proportional to 120,883.78, 166,818.18 and 67,166.74

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Solution

The fourth proportional to 120,883.78, 166,818.18 and 67,166.74 is: 92,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,883.78 : 166,818.18 = 67,166.74 : x
  2. Step 2: Convert to fraction form
    120,883.78/166,818.18 = 67,166.74/x
  3. Step 3: Cross multiply
    120,883.78x = 166,818.18 × 67,166.74
  4. Step 4: Simplify right side
    120,883.78x = 11,204,633,323.33
  5. Step 5: Solve for x
    x = 11,204,633,323.33/120,883.78
  6. Step 6: Final answer
    x = 92,689.30

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1.5x scale

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.