Home / 120,850.83-166,794.12-100,675.77

Finding the Fourth Proportional to 120,850.83, 166,794.12 and 100,675.77

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Solution

The fourth proportional to 120,850.83, 166,794.12 and 100,675.77 is: 138,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,850.83 : 166,794.12 = 100,675.77 : x
  2. Step 2: Convert to fraction form
    120,850.83/166,794.12 = 100,675.77/x
  3. Step 3: Cross multiply
    120,850.83x = 166,794.12 × 100,675.77
  4. Step 4: Simplify right side
    120,850.83x = 16,792,126,462.47
  5. Step 5: Solve for x
    x = 16,792,126,462.47/120,850.83
  6. Step 6: Final answer
    x = 138,949.20

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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.