Home / 120,383.24-166,084.26-77,965.16

Finding the Fourth Proportional to 120,383.24, 166,084.26 and 77,965.16

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Solution

The fourth proportional to 120,383.24, 166,084.26 and 77,965.16 is: 107,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,383.24 : 166,084.26 = 77,965.16 : x
  2. Step 2: Convert to fraction form
    120,383.24/166,084.26 = 77,965.16/x
  3. Step 3: Cross multiply
    120,383.24x = 166,084.26 × 77,965.16
  4. Step 4: Simplify right side
    120,383.24x = 12,948,785,904.38
  5. Step 5: Solve for x
    x = 12,948,785,904.38/120,383.24
  6. Step 6: Final answer
    x = 107,563.03

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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.