Home / 115,313.40-172,987.92-48,753.81

Finding the Fourth Proportional to 115,313.40, 172,987.92 and 48,753.81

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Solution

The fourth proportional to 115,313.40, 172,987.92 and 48,753.81 is: 73,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,313.40 : 172,987.92 = 48,753.81 : x
  2. Step 2: Convert to fraction form
    115,313.40/172,987.92 = 48,753.81/x
  3. Step 3: Cross multiply
    115,313.40x = 172,987.92 × 48,753.81
  4. Step 4: Simplify right side
    115,313.40x = 8,433,820,183.98
  5. Step 5: Solve for x
    x = 8,433,820,183.98/115,313.40
  6. Step 6: Final answer
    x = 73,138.25

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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.