Home / 115,910.30-173,865.45-56,783.90

Finding the Fourth Proportional to 115,910.30, 173,865.45 and 56,783.90

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Solution

The fourth proportional to 115,910.30, 173,865.45 and 56,783.90 is: 85,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,910.30 : 173,865.45 = 56,783.90 : x
  2. Step 2: Convert to fraction form
    115,910.30/173,865.45 = 56,783.90/x
  3. Step 3: Cross multiply
    115,910.30x = 173,865.45 × 56,783.90
  4. Step 4: Simplify right side
    115,910.30x = 9,872,758,326.26
  5. Step 5: Solve for x
    x = 9,872,758,326.26/115,910.30
  6. Step 6: Final answer
    x = 85,175.85

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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.