Home / 132,865.72-199,296.86-79,572.58

Finding the Fourth Proportional to 132,865.72, 199,296.86 and 79,572.58

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Solution

The fourth proportional to 132,865.72, 199,296.86 and 79,572.58 is: 119,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,865.72 : 199,296.86 = 79,572.58 : x
  2. Step 2: Convert to fraction form
    132,865.72/199,296.86 = 79,572.58/x
  3. Step 3: Cross multiply
    132,865.72x = 199,296.86 × 79,572.58
  4. Step 4: Simplify right side
    132,865.72x = 15,858,564,439.99
  5. Step 5: Solve for x
    x = 15,858,564,439.99/132,865.72
  6. Step 6: Final answer
    x = 119,357.84

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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.