Home / 120,571.21-166,395.74-66,856.23

Finding the Fourth Proportional to 120,571.21, 166,395.74 and 66,856.23

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Solution

The fourth proportional to 120,571.21, 166,395.74 and 66,856.23 is: 92,265.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,571.21 : 166,395.74 = 66,856.23 : x
  2. Step 2: Convert to fraction form
    120,571.21/166,395.74 = 66,856.23/x
  3. Step 3: Cross multiply
    120,571.21x = 166,395.74 × 66,856.23
  4. Step 4: Simplify right side
    120,571.21x = 11,124,591,062.19
  5. Step 5: Solve for x
    x = 11,124,591,062.19/120,571.21
  6. Step 6: Final answer
    x = 92,265.73

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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.