Home / 120,850.23-166,768.65-67,138.65

Finding the Fourth Proportional to 120,850.23, 166,768.65 and 67,138.65

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Solution

The fourth proportional to 120,850.23, 166,768.65 and 67,138.65 is: 92,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,850.23 : 166,768.65 = 67,138.65 : x
  2. Step 2: Convert to fraction form
    120,850.23/166,768.65 = 67,138.65/x
  3. Step 3: Cross multiply
    120,850.23x = 166,768.65 × 67,138.65
  4. Step 4: Simplify right side
    120,850.23x = 11,196,622,023.32
  5. Step 5: Solve for x
    x = 11,196,622,023.32/120,850.23
  6. Step 6: Final answer
    x = 92,648.74

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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.