Home / 120,377.28-166,134.24-70,107.84

Finding the Fourth Proportional to 120,377.28, 166,134.24 and 70,107.84

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Solution

The fourth proportional to 120,377.28, 166,134.24 and 70,107.84 is: 96,756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,377.28 : 166,134.24 = 70,107.84 : x
  2. Step 2: Convert to fraction form
    120,377.28/166,134.24 = 70,107.84/x
  3. Step 3: Cross multiply
    120,377.28x = 166,134.24 × 70,107.84
  4. Step 4: Simplify right side
    120,377.28x = 11,647,312,716.44
  5. Step 5: Solve for x
    x = 11,647,312,716.44/120,377.28
  6. Step 6: Final answer
    x = 96,756.74

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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.