Home / 120,426.56-166,186.20-66,710.72

Finding the Fourth Proportional to 120,426.56, 166,186.20 and 66,710.72

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Solution

The fourth proportional to 120,426.56, 166,186.20 and 66,710.72 is: 92,059.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,426.56 : 166,186.20 = 66,710.72 : x
  2. Step 2: Convert to fraction form
    120,426.56/166,186.20 = 66,710.72/x
  3. Step 3: Cross multiply
    120,426.56x = 166,186.20 × 66,710.72
  4. Step 4: Simplify right side
    120,426.56x = 11,086,401,056.06
  5. Step 5: Solve for x
    x = 11,086,401,056.06/120,426.56
  6. Step 6: Final answer
    x = 92,059.43

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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.