Home / 115,815.28-173,395.22-73,590.70

Finding the Fourth Proportional to 115,815.28, 173,395.22 and 73,590.70

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Solution

The fourth proportional to 115,815.28, 173,395.22 and 73,590.70 is: 110,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,815.28 : 173,395.22 = 73,590.70 : x
  2. Step 2: Convert to fraction form
    115,815.28/173,395.22 = 73,590.70/x
  3. Step 3: Cross multiply
    115,815.28x = 173,395.22 × 73,590.70
  4. Step 4: Simplify right side
    115,815.28x = 12,760,275,616.45
  5. Step 5: Solve for x
    x = 12,760,275,616.45/115,815.28
  6. Step 6: Final answer
    x = 110,177.82

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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.