Home / 115,136.24-172,752.16-55,134.48

Finding the Fourth Proportional to 115,136.24, 172,752.16 and 55,134.48

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Solution

The fourth proportional to 115,136.24, 172,752.16 and 55,134.48 is: 82,724.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,136.24 : 172,752.16 = 55,134.48 : x
  2. Step 2: Convert to fraction form
    115,136.24/172,752.16 = 55,134.48/x
  3. Step 3: Cross multiply
    115,136.24x = 172,752.16 × 55,134.48
  4. Step 4: Simplify right side
    115,136.24x = 9,524,600,510.48
  5. Step 5: Solve for x
    x = 9,524,600,510.48/115,136.24
  6. Step 6: Final answer
    x = 82,724.61

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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.