Home / 258,079.20-387,228.06-125,058.48

Finding the Fourth Proportional to 258,079.20, 387,228.06 and 125,058.48

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Solution

The fourth proportional to 258,079.20, 387,228.06 and 125,058.48 is: 187,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,079.20 : 387,228.06 = 125,058.48 : x
  2. Step 2: Convert to fraction form
    258,079.20/387,228.06 = 125,058.48/x
  3. Step 3: Cross multiply
    258,079.20x = 387,228.06 × 125,058.48
  4. Step 4: Simplify right side
    258,079.20x = 48,426,152,596.95
  5. Step 5: Solve for x
    x = 48,426,152,596.95/258,079.20
  6. Step 6: Final answer
    x = 187,640.66

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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.