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Finding the Fourth Proportional to 120,314.62, 166,036.53 and 66,598.12

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Solution

The fourth proportional to 120,314.62, 166,036.53 and 66,598.12 is: 91,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,314.62 : 166,036.53 = 66,598.12 : x
  2. Step 2: Convert to fraction form
    120,314.62/166,036.53 = 66,598.12/x
  3. Step 3: Cross multiply
    120,314.62x = 166,036.53 × 66,598.12
  4. Step 4: Simplify right side
    120,314.62x = 11,057,720,749.32
  5. Step 5: Solve for x
    x = 11,057,720,749.32/120,314.62
  6. Step 6: Final answer
    x = 91,906.71

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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.