Home / 119,806.05-165,385.49-77,385.27

Finding the Fourth Proportional to 119,806.05, 165,385.49 and 77,385.27

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Solution

The fourth proportional to 119,806.05, 165,385.49 and 77,385.27 is: 106,826.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,806.05 : 165,385.49 = 77,385.27 : x
  2. Step 2: Convert to fraction form
    119,806.05/165,385.49 = 77,385.27/x
  3. Step 3: Cross multiply
    119,806.05x = 165,385.49 × 77,385.27
  4. Step 4: Simplify right side
    119,806.05x = 12,798,400,797.73
  5. Step 5: Solve for x
    x = 12,798,400,797.73/119,806.05
  6. Step 6: Final answer
    x = 106,826.00

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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.