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Finding the Fourth Proportional to 120,473.28, 166,259.52 and 66,764.16

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Solution

The fourth proportional to 120,473.28, 166,259.52 and 66,764.16 is: 92,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,473.28 : 166,259.52 = 66,764.16 : x
  2. Step 2: Convert to fraction form
    120,473.28/166,259.52 = 66,764.16/x
  3. Step 3: Cross multiply
    120,473.28x = 166,259.52 × 66,764.16
  4. Step 4: Simplify right side
    120,473.28x = 11,100,177,194.80
  5. Step 5: Solve for x
    x = 11,100,177,194.80/120,473.28
  6. Step 6: Final answer
    x = 92,138.08

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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.