Home / 84,826.70-127,240.05-71,704.70

Finding the Fourth Proportional to 84,826.70, 127,240.05 and 71,704.70

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Solution

The fourth proportional to 84,826.70, 127,240.05 and 71,704.70 is: 107,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,826.70 : 127,240.05 = 71,704.70 : x
  2. Step 2: Convert to fraction form
    84,826.70/127,240.05 = 71,704.70/x
  3. Step 3: Cross multiply
    84,826.70x = 127,240.05 × 71,704.70
  4. Step 4: Simplify right side
    84,826.70x = 9,123,709,613.24
  5. Step 5: Solve for x
    x = 9,123,709,613.24/84,826.70
  6. Step 6: Final answer
    x = 107,557.05

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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.