Home / 120,144.87-165,793.23-66,426.66

Finding the Fourth Proportional to 120,144.87, 165,793.23 and 66,426.66

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Solution

The fourth proportional to 120,144.87, 165,793.23 and 66,426.66 is: 91,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,144.87 : 165,793.23 = 66,426.66 : x
  2. Step 2: Convert to fraction form
    120,144.87/165,793.23 = 66,426.66/x
  3. Step 3: Cross multiply
    120,144.87x = 165,793.23 × 66,426.66
  4. Step 4: Simplify right side
    120,144.87x = 11,013,090,519.51
  5. Step 5: Solve for x
    x = 11,013,090,519.51/120,144.87
  6. Step 6: Final answer
    x = 91,665.09

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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.