Home / 101,664.18-140,296.39-55,723.79

Finding the Fourth Proportional to 101,664.18, 140,296.39 and 55,723.79

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Solution

The fourth proportional to 101,664.18, 140,296.39 and 55,723.79 is: 76,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,664.18 : 140,296.39 = 55,723.79 : x
  2. Step 2: Convert to fraction form
    101,664.18/140,296.39 = 55,723.79/x
  3. Step 3: Cross multiply
    101,664.18x = 140,296.39 × 55,723.79
  4. Step 4: Simplify right side
    101,664.18x = 7,817,846,785.55
  5. Step 5: Solve for x
    x = 7,817,846,785.55/101,664.18
  6. Step 6: Final answer
    x = 76,898.73

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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.