Home / 120,528.92-166,318.72-66,809.36

Finding the Fourth Proportional to 120,528.92, 166,318.72 and 66,809.36

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Solution

The fourth proportional to 120,528.92, 166,318.72 and 66,809.36 is: 92,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528.92 : 166,318.72 = 66,809.36 : x
  2. Step 2: Convert to fraction form
    120,528.92/166,318.72 = 66,809.36/x
  3. Step 3: Cross multiply
    120,528.92x = 166,318.72 × 66,809.36
  4. Step 4: Simplify right side
    120,528.92x = 11,111,647,487.99
  5. Step 5: Solve for x
    x = 11,111,647,487.99/120,528.92
  6. Step 6: Final answer
    x = 92,190.72

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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.