Home / 258,585.48-387,862.09-123,745.30

Finding the Fourth Proportional to 258,585.48, 387,862.09 and 123,745.30

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Solution

The fourth proportional to 258,585.48, 387,862.09 and 123,745.30 is: 185,610.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,585.48 : 387,862.09 = 123,745.30 : x
  2. Step 2: Convert to fraction form
    258,585.48/387,862.09 = 123,745.30/x
  3. Step 3: Cross multiply
    258,585.48x = 387,862.09 × 123,745.30
  4. Step 4: Simplify right side
    258,585.48x = 47,996,109,406.66
  5. Step 5: Solve for x
    x = 47,996,109,406.66/258,585.48
  6. Step 6: Final answer
    x = 185,610.23

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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.