Home / 120,790.83-166,685.76-67,079.28

Finding the Fourth Proportional to 120,790.83, 166,685.76 and 67,079.28

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Solution

The fourth proportional to 120,790.83, 166,685.76 and 67,079.28 is: 92,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,790.83 : 166,685.76 = 67,079.28 : x
  2. Step 2: Convert to fraction form
    120,790.83/166,685.76 = 67,079.28/x
  3. Step 3: Cross multiply
    120,790.83x = 166,685.76 × 67,079.28
  4. Step 4: Simplify right side
    120,790.83x = 11,181,160,767.05
  5. Step 5: Solve for x
    x = 11,181,160,767.05/120,790.83
  6. Step 6: Final answer
    x = 92,566.30

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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.