Home / 120,630.53-166,490.06-66,932.84

Finding the Fourth Proportional to 120,630.53, 166,490.06 and 66,932.84

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Solution

The fourth proportional to 120,630.53, 166,490.06 and 66,932.84 is: 92,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,630.53 : 166,490.06 = 66,932.84 : x
  2. Step 2: Convert to fraction form
    120,630.53/166,490.06 = 66,932.84/x
  3. Step 3: Cross multiply
    120,630.53x = 166,490.06 × 66,932.84
  4. Step 4: Simplify right side
    120,630.53x = 11,143,652,380.24
  5. Step 5: Solve for x
    x = 11,143,652,380.24/120,630.53
  6. Step 6: Final answer
    x = 92,378.38

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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.