Home / 107,769.15-161,573.13-74,393.91

Finding the Fourth Proportional to 107,769.15, 161,573.13 and 74,393.91

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Solution

The fourth proportional to 107,769.15, 161,573.13 and 74,393.91 is: 111,535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,769.15 : 161,573.13 = 74,393.91 : x
  2. Step 2: Convert to fraction form
    107,769.15/161,573.13 = 74,393.91/x
  3. Step 3: Cross multiply
    107,769.15x = 161,573.13 × 74,393.91
  4. Step 4: Simplify right side
    107,769.15x = 12,020,056,891.64
  5. Step 5: Solve for x
    x = 12,020,056,891.64/107,769.15
  6. Step 6: Final answer
    x = 111,535.23

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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.