Home / 120,401.08-166,146.19-66,682.89

Finding the Fourth Proportional to 120,401.08, 166,146.19 and 66,682.89

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Solution

The fourth proportional to 120,401.08, 166,146.19 and 66,682.89 is: 92,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,401.08 : 166,146.19 = 66,682.89 : x
  2. Step 2: Convert to fraction form
    120,401.08/166,146.19 = 66,682.89/x
  3. Step 3: Cross multiply
    120,401.08x = 166,146.19 × 66,682.89
  4. Step 4: Simplify right side
    120,401.08x = 11,079,107,944.98
  5. Step 5: Solve for x
    x = 11,079,107,944.98/120,401.08
  6. Step 6: Final answer
    x = 92,018.35

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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.