Home / 120,430.68-166,195.53-66,716.43

Finding the Fourth Proportional to 120,430.68, 166,195.53 and 66,716.43

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Solution

The fourth proportional to 120,430.68, 166,195.53 and 66,716.43 is: 92,069.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,430.68 : 166,195.53 = 66,716.43 : x
  2. Step 2: Convert to fraction form
    120,430.68/166,195.53 = 66,716.43/x
  3. Step 3: Cross multiply
    120,430.68x = 166,195.53 × 66,716.43
  4. Step 4: Simplify right side
    120,430.68x = 11,087,972,443.56
  5. Step 5: Solve for x
    x = 11,087,972,443.56/120,430.68
  6. Step 6: Final answer
    x = 92,069.33

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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.