Home / 120,528.73-166,318.46-66,809.17

Finding the Fourth Proportional to 120,528.73, 166,318.46 and 66,809.17

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Solution

The fourth proportional to 120,528.73, 166,318.46 and 66,809.17 is: 92,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,528.73 : 166,318.46 = 66,809.17 : x
  2. Step 2: Convert to fraction form
    120,528.73/166,318.46 = 66,809.17/x
  3. Step 3: Cross multiply
    120,528.73x = 166,318.46 × 66,809.17
  4. Step 4: Simplify right side
    120,528.73x = 11,111,598,768.47
  5. Step 5: Solve for x
    x = 11,111,598,768.47/120,528.73
  6. Step 6: Final answer
    x = 92,190.46

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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.