Home / 120,635.72-166,477.14-66,928.88

Finding the Fourth Proportional to 120,635.72, 166,477.14 and 66,928.88

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Solution

The fourth proportional to 120,635.72, 166,477.14 and 66,928.88 is: 92,361.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,635.72 : 166,477.14 = 66,928.88 : x
  2. Step 2: Convert to fraction form
    120,635.72/166,477.14 = 66,928.88/x
  3. Step 3: Cross multiply
    120,635.72x = 166,477.14 × 66,928.88
  4. Step 4: Simplify right side
    120,635.72x = 11,142,128,525.80
  5. Step 5: Solve for x
    x = 11,142,128,525.80/120,635.72
  6. Step 6: Final answer
    x = 92,361.77

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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.