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Finding the Fourth Proportional to 120,663.33, 166,507.41 and 66,946.56

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Solution

The fourth proportional to 120,663.33, 166,507.41 and 66,946.56 is: 92,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,663.33 : 166,507.41 = 66,946.56 : x
  2. Step 2: Convert to fraction form
    120,663.33/166,507.41 = 66,946.56/x
  3. Step 3: Cross multiply
    120,663.33x = 166,507.41 × 66,946.56
  4. Step 4: Simplify right side
    120,663.33x = 11,147,098,314.01
  5. Step 5: Solve for x
    x = 11,147,098,314.01/120,663.33
  6. Step 6: Final answer
    x = 92,381.82

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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.