Home / 115,605.86-173,399.68-36,720.77

Finding the Fourth Proportional to 115,605.86, 173,399.68 and 36,720.77

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Solution

The fourth proportional to 115,605.86, 173,399.68 and 36,720.77 is: 55,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,605.86 : 173,399.68 = 36,720.77 : x
  2. Step 2: Convert to fraction form
    115,605.86/173,399.68 = 36,720.77/x
  3. Step 3: Cross multiply
    115,605.86x = 173,399.68 × 36,720.77
  4. Step 4: Simplify right side
    115,605.86x = 6,367,369,583.75
  5. Step 5: Solve for x
    x = 6,367,369,583.75/115,605.86
  6. Step 6: Final answer
    x = 55,078.26

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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.