Home / 115,043.76-172,644.45-40,163.91

Finding the Fourth Proportional to 115,043.76, 172,644.45 and 40,163.91

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Solution

The fourth proportional to 115,043.76, 172,644.45 and 40,163.91 is: 60,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,043.76 : 172,644.45 = 40,163.91 : x
  2. Step 2: Convert to fraction form
    115,043.76/172,644.45 = 40,163.91/x
  3. Step 3: Cross multiply
    115,043.76x = 172,644.45 × 40,163.91
  4. Step 4: Simplify right side
    115,043.76x = 6,934,076,151.80
  5. Step 5: Solve for x
    x = 6,934,076,151.80/115,043.76
  6. Step 6: Final answer
    x = 60,273.38

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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.