Home / 120,841.92-166,806.77-103,777.65

Finding the Fourth Proportional to 120,841.92, 166,806.77 and 103,777.65

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Solution

The fourth proportional to 120,841.92, 166,806.77 and 103,777.65 is: 143,251.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,841.92 : 166,806.77 = 103,777.65 : x
  2. Step 2: Convert to fraction form
    120,841.92/166,806.77 = 103,777.65/x
  3. Step 3: Cross multiply
    120,841.92x = 166,806.77 × 103,777.65
  4. Step 4: Simplify right side
    120,841.92x = 17,310,814,075.80
  5. Step 5: Solve for x
    x = 17,310,814,075.80/120,841.92
  6. Step 6: Final answer
    x = 143,251.73

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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.