Home / 115,664.11-173,513.45-36,780.91

Finding the Fourth Proportional to 115,664.11, 173,513.45 and 36,780.91

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Solution

The fourth proportional to 115,664.11, 173,513.45 and 36,780.91 is: 55,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,664.11 : 173,513.45 = 36,780.91 : x
  2. Step 2: Convert to fraction form
    115,664.11/173,513.45 = 36,780.91/x
  3. Step 3: Cross multiply
    115,664.11x = 173,513.45 × 36,780.91
  4. Step 4: Simplify right side
    115,664.11x = 6,381,982,588.24
  5. Step 5: Solve for x
    x = 6,381,982,588.24/115,664.11
  6. Step 6: Final answer
    x = 55,176.86

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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.