Home / 124,937.21-172,413.56-73,991.04

Finding the Fourth Proportional to 124,937.21, 172,413.56 and 73,991.04

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Solution

The fourth proportional to 124,937.21, 172,413.56 and 73,991.04 is: 102,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,937.21 : 172,413.56 = 73,991.04 : x
  2. Step 2: Convert to fraction form
    124,937.21/172,413.56 = 73,991.04/x
  3. Step 3: Cross multiply
    124,937.21x = 172,413.56 × 73,991.04
  4. Step 4: Simplify right side
    124,937.21x = 12,757,058,614.50
  5. Step 5: Solve for x
    x = 12,757,058,614.50/124,937.21
  6. Step 6: Final answer
    x = 102,107.76

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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.