Home / 120,350.69-166,089.14-66,635.70

Finding the Fourth Proportional to 120,350.69, 166,089.14 and 66,635.70

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Solution

The fourth proportional to 120,350.69, 166,089.14 and 66,635.70 is: 91,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.69 : 166,089.14 = 66,635.70 : x
  2. Step 2: Convert to fraction form
    120,350.69/166,089.14 = 66,635.70/x
  3. Step 3: Cross multiply
    120,350.69x = 166,089.14 × 66,635.70
  4. Step 4: Simplify right side
    120,350.69x = 11,067,466,645.84
  5. Step 5: Solve for x
    x = 11,067,466,645.84/120,350.69
  6. Step 6: Final answer
    x = 91,960.14

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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.