Home / 120,385.80-166,160.04-80,101.26

Finding the Fourth Proportional to 120,385.80, 166,160.04 and 80,101.26

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Solution

The fourth proportional to 120,385.80, 166,160.04 and 80,101.26 is: 110,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,385.80 : 166,160.04 = 80,101.26 : x
  2. Step 2: Convert to fraction form
    120,385.80/166,160.04 = 80,101.26/x
  3. Step 3: Cross multiply
    120,385.80x = 166,160.04 × 80,101.26
  4. Step 4: Simplify right side
    120,385.80x = 13,309,628,565.65
  5. Step 5: Solve for x
    x = 13,309,628,565.65/120,385.80
  6. Step 6: Final answer
    x = 110,558.13

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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.