Home / 120,828.28-166,735.98-67,110.20

Finding the Fourth Proportional to 120,828.28, 166,735.98 and 67,110.20

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Solution

The fourth proportional to 120,828.28, 166,735.98 and 67,110.20 is: 92,608.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,828.28 : 166,735.98 = 67,110.20 : x
  2. Step 2: Convert to fraction form
    120,828.28/166,735.98 = 67,110.20/x
  3. Step 3: Cross multiply
    120,828.28x = 166,735.98 × 67,110.20
  4. Step 4: Simplify right side
    120,828.28x = 11,189,684,965.00
  5. Step 5: Solve for x
    x = 11,189,684,965.00/120,828.28
  6. Step 6: Final answer
    x = 92,608.16

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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.