Home / 115,144.18-172,722.42-36,264.54

Finding the Fourth Proportional to 115,144.18, 172,722.42 and 36,264.54

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Solution

The fourth proportional to 115,144.18, 172,722.42 and 36,264.54 is: 54,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,144.18 : 172,722.42 = 36,264.54 : x
  2. Step 2: Convert to fraction form
    115,144.18/172,722.42 = 36,264.54/x
  3. Step 3: Cross multiply
    115,144.18x = 172,722.42 × 36,264.54
  4. Step 4: Simplify right side
    115,144.18x = 6,263,699,108.99
  5. Step 5: Solve for x
    x = 6,263,699,108.99/115,144.18
  6. Step 6: Final answer
    x = 54,398.75

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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.