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Finding the Fourth Proportional to 120,772.82, 166,667.18 and 66,327.32

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Solution

The fourth proportional to 120,772.82, 166,667.18 and 66,327.32 is: 91,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,772.82 : 166,667.18 = 66,327.32 : x
  2. Step 2: Convert to fraction form
    120,772.82/166,667.18 = 66,327.32/x
  3. Step 3: Cross multiply
    120,772.82x = 166,667.18 × 66,327.32
  4. Step 4: Simplify right side
    120,772.82x = 11,054,586,216.39
  5. Step 5: Solve for x
    x = 11,054,586,216.39/120,772.82
  6. Step 6: Final answer
    x = 91,532.07

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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.