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Finding the Fourth Proportional to 120,465.90, 166,240.45 and 66,750.44

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Solution

The fourth proportional to 120,465.90, 166,240.45 and 66,750.44 is: 92,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,465.90 : 166,240.45 = 66,750.44 : x
  2. Step 2: Convert to fraction form
    120,465.90/166,240.45 = 66,750.44/x
  3. Step 3: Cross multiply
    120,465.90x = 166,240.45 × 66,750.44
  4. Step 4: Simplify right side
    120,465.90x = 11,096,623,604.41
  5. Step 5: Solve for x
    x = 11,096,623,604.41/120,465.90
  6. Step 6: Final answer
    x = 92,114.23

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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.