Home / 120,510.64-166,293-66,794.56

Finding the Fourth Proportional to 120,510.64, 166,293 and 66,794.56

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Solution

The fourth proportional to 120,510.64, 166,293 and 66,794.56 is: 92,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510.64 : 166,293 = 66,794.56 : x
  2. Step 2: Convert to fraction form
    120,510.64/166,293 = 66,794.56/x
  3. Step 3: Cross multiply
    120,510.64x = 166,293 × 66,794.56
  4. Step 4: Simplify right side
    120,510.64x = 11,107,467,766.08
  5. Step 5: Solve for x
    x = 11,107,467,766.08/120,510.64
  6. Step 6: Final answer
    x = 92,170.02

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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.