Home / 115,905.90-173,640.15-108,032.70

Finding the Fourth Proportional to 115,905.90, 173,640.15 and 108,032.70

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Solution

The fourth proportional to 115,905.90, 173,640.15 and 108,032.70 is: 161,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,905.90 : 173,640.15 = 108,032.70 : x
  2. Step 2: Convert to fraction form
    115,905.90/173,640.15 = 108,032.70/x
  3. Step 3: Cross multiply
    115,905.90x = 173,640.15 × 108,032.70
  4. Step 4: Simplify right side
    115,905.90x = 18,758,814,232.91
  5. Step 5: Solve for x
    x = 18,758,814,232.91/115,905.90
  6. Step 6: Final answer
    x = 161,845.21

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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.