Home / 120,790.49-181,236.92-64,615.88

Finding the Fourth Proportional to 120,790.49, 181,236.92 and 64,615.88

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Solution

The fourth proportional to 120,790.49, 181,236.92 and 64,615.88 is: 96,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,790.49 : 181,236.92 = 64,615.88 : x
  2. Step 2: Convert to fraction form
    120,790.49/181,236.92 = 64,615.88/x
  3. Step 3: Cross multiply
    120,790.49x = 181,236.92 × 64,615.88
  4. Step 4: Simplify right side
    120,790.49x = 11,710,781,845.03
  5. Step 5: Solve for x
    x = 11,710,781,845.03/120,790.49
  6. Step 6: Final answer
    x = 96,951.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.