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Finding the Fourth Proportional to 120,655.80, 166,522.22 and 69,658.34

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Solution

The fourth proportional to 120,655.80, 166,522.22 and 69,658.34 is: 96,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,655.80 : 166,522.22 = 69,658.34 : x
  2. Step 2: Convert to fraction form
    120,655.80/166,522.22 = 69,658.34/x
  3. Step 3: Cross multiply
    120,655.80x = 166,522.22 × 69,658.34
  4. Step 4: Simplify right side
    120,655.80x = 11,599,660,237.41
  5. Step 5: Solve for x
    x = 11,599,660,237.41/120,655.80
  6. Step 6: Final answer
    x = 96,138.44

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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.