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Finding the Fourth Proportional to 120,314.87, 166,032.50 and 66,598.73

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Solution

The fourth proportional to 120,314.87, 166,032.50 and 66,598.73 is: 91,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,314.87 : 166,032.50 = 66,598.73 : x
  2. Step 2: Convert to fraction form
    120,314.87/166,032.50 = 66,598.73/x
  3. Step 3: Cross multiply
    120,314.87x = 166,032.50 × 66,598.73
  4. Step 4: Simplify right side
    120,314.87x = 11,057,552,475.57
  5. Step 5: Solve for x
    x = 11,057,552,475.57/120,314.87
  6. Step 6: Final answer
    x = 91,905.12

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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.