Home / 120,376.24-166,119.08-66,661.24

Finding the Fourth Proportional to 120,376.24, 166,119.08 and 66,661.24

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Solution

The fourth proportional to 120,376.24, 166,119.08 and 66,661.24 is: 91,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,376.24 : 166,119.08 = 66,661.24 : x
  2. Step 2: Convert to fraction form
    120,376.24/166,119.08 = 66,661.24/x
  3. Step 3: Cross multiply
    120,376.24x = 166,119.08 × 66,661.24
  4. Step 4: Simplify right side
    120,376.24x = 11,073,703,860.46
  5. Step 5: Solve for x
    x = 11,073,703,860.46/120,376.24
  6. Step 6: Final answer
    x = 91,992.44

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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.