Home / 115,261.85-172,851.19-48,707.12

Finding the Fourth Proportional to 115,261.85, 172,851.19 and 48,707.12

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Solution

The fourth proportional to 115,261.85, 172,851.19 and 48,707.12 is: 73,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.85 : 172,851.19 = 48,707.12 : x
  2. Step 2: Convert to fraction form
    115,261.85/172,851.19 = 48,707.12/x
  3. Step 3: Cross multiply
    115,261.85x = 172,851.19 × 48,707.12
  4. Step 4: Simplify right side
    115,261.85x = 8,419,083,963.83
  5. Step 5: Solve for x
    x = 8,419,083,963.83/115,261.85
  6. Step 6: Final answer
    x = 73,043.11

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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.