Home / 258,076.20-387,223.56-125,055.48

Finding the Fourth Proportional to 258,076.20, 387,223.56 and 125,055.48

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Solution

The fourth proportional to 258,076.20, 387,223.56 and 125,055.48 is: 187,636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,076.20 : 387,223.56 = 125,055.48 : x
  2. Step 2: Convert to fraction form
    258,076.20/387,223.56 = 125,055.48/x
  3. Step 3: Cross multiply
    258,076.20x = 387,223.56 × 125,055.48
  4. Step 4: Simplify right side
    258,076.20x = 48,424,428,163.11
  5. Step 5: Solve for x
    x = 48,424,428,163.11/258,076.20
  6. Step 6: Final answer
    x = 187,636.16

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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.