Home / 116,290.80-160,439.76-76,027.68

Finding the Fourth Proportional to 116,290.80, 160,439.76 and 76,027.68

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Solution

The fourth proportional to 116,290.80, 160,439.76 and 76,027.68 is: 104,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,290.80 : 160,439.76 = 76,027.68 : x
  2. Step 2: Convert to fraction form
    116,290.80/160,439.76 = 76,027.68/x
  3. Step 3: Cross multiply
    116,290.80x = 160,439.76 × 76,027.68
  4. Step 4: Simplify right side
    116,290.80x = 12,197,862,732.56
  5. Step 5: Solve for x
    x = 12,197,862,732.56/116,290.80
  6. Step 6: Final answer
    x = 104,891.04

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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.