Home / 258,139.30-387,058.59-100,183.24

Finding the Fourth Proportional to 258,139.30, 387,058.59 and 100,183.24

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Solution

The fourth proportional to 258,139.30, 387,058.59 and 100,183.24 is: 150,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,139.30 : 387,058.59 = 100,183.24 : x
  2. Step 2: Convert to fraction form
    258,139.30/387,058.59 = 100,183.24/x
  3. Step 3: Cross multiply
    258,139.30x = 387,058.59 × 100,183.24
  4. Step 4: Simplify right side
    258,139.30x = 38,776,783,616.03
  5. Step 5: Solve for x
    x = 38,776,783,616.03/258,139.30
  6. Step 6: Final answer
    x = 150,216.51

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1.5x scale

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.