Home / 486,058.26-729,085.32-131,108.16

Finding the Fourth Proportional to 486,058.26, 729,085.32 and 131,108.16

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Solution

The fourth proportional to 486,058.26, 729,085.32 and 131,108.16 is: 196,661.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,058.26 : 729,085.32 = 131,108.16 : x
  2. Step 2: Convert to fraction form
    486,058.26/729,085.32 = 131,108.16/x
  3. Step 3: Cross multiply
    486,058.26x = 729,085.32 × 131,108.16
  4. Step 4: Simplify right side
    486,058.26x = 95,589,034,788.21
  5. Step 5: Solve for x
    x = 95,589,034,788.21/486,058.26
  6. Step 6: Final answer
    x = 196,661.68

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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.