Home / 120,772.20-166,665.96-67,057.32

Finding the Fourth Proportional to 120,772.20, 166,665.96 and 67,057.32

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Solution

The fourth proportional to 120,772.20, 166,665.96 and 67,057.32 is: 92,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,772.20 : 166,665.96 = 67,057.32 : x
  2. Step 2: Convert to fraction form
    120,772.20/166,665.96 = 67,057.32/x
  3. Step 3: Cross multiply
    120,772.20x = 166,665.96 × 67,057.32
  4. Step 4: Simplify right side
    120,772.20x = 11,176,172,612.83
  5. Step 5: Solve for x
    x = 11,176,172,612.83/120,772.20
  6. Step 6: Final answer
    x = 92,539.28

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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.