Home / 120,601.91-166,436.19-66,883.72

Finding the Fourth Proportional to 120,601.91, 166,436.19 and 66,883.72

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Solution

The fourth proportional to 120,601.91, 166,436.19 and 66,883.72 is: 92,302.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,601.91 : 166,436.19 = 66,883.72 : x
  2. Step 2: Convert to fraction form
    120,601.91/166,436.19 = 66,883.72/x
  3. Step 3: Cross multiply
    120,601.91x = 166,436.19 × 66,883.72
  4. Step 4: Simplify right side
    120,601.91x = 11,131,871,529.83
  5. Step 5: Solve for x
    x = 11,131,871,529.83/120,601.91
  6. Step 6: Final answer
    x = 92,302.61

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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.