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Finding the Fourth Proportional to 120,544.71, 166,351.42 and 66,828.34

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Solution

The fourth proportional to 120,544.71, 166,351.42 and 66,828.34 is: 92,222.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,544.71 : 166,351.42 = 66,828.34 : x
  2. Step 2: Convert to fraction form
    120,544.71/166,351.42 = 66,828.34/x
  3. Step 3: Cross multiply
    120,544.71x = 166,351.42 × 66,828.34
  4. Step 4: Simplify right side
    120,544.71x = 11,116,989,546.72
  5. Step 5: Solve for x
    x = 11,116,989,546.72/120,544.71
  6. Step 6: Final answer
    x = 92,222.96

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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.