Home / 120,333.38-166,061.36-66,619.34

Finding the Fourth Proportional to 120,333.38, 166,061.36 and 66,619.34

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Solution

The fourth proportional to 120,333.38, 166,061.36 and 66,619.34 is: 91,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,333.38 : 166,061.36 = 66,619.34 : x
  2. Step 2: Convert to fraction form
    120,333.38/166,061.36 = 66,619.34/x
  3. Step 3: Cross multiply
    120,333.38x = 166,061.36 × 66,619.34
  4. Step 4: Simplify right side
    120,333.38x = 11,062,898,202.70
  5. Step 5: Solve for x
    x = 11,062,898,202.70/120,333.38
  6. Step 6: Final answer
    x = 91,935.41

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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.