Home / 124,845.03-172,289.19-75,787.23

Finding the Fourth Proportional to 124,845.03, 172,289.19 and 75,787.23

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Solution

The fourth proportional to 124,845.03, 172,289.19 and 75,787.23 is: 104,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,845.03 : 172,289.19 = 75,787.23 : x
  2. Step 2: Convert to fraction form
    124,845.03/172,289.19 = 75,787.23/x
  3. Step 3: Cross multiply
    124,845.03x = 172,289.19 × 75,787.23
  4. Step 4: Simplify right side
    124,845.03x = 13,057,320,469.04
  5. Step 5: Solve for x
    x = 13,057,320,469.04/124,845.03
  6. Step 6: Final answer
    x = 104,588.23

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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.