Home / 115,300.78-172,869.48-51,223.73

Finding the Fourth Proportional to 115,300.78, 172,869.48 and 51,223.73

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Solution

The fourth proportional to 115,300.78, 172,869.48 and 51,223.73 is: 76,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,300.78 : 172,869.48 = 51,223.73 : x
  2. Step 2: Convert to fraction form
    115,300.78/172,869.48 = 51,223.73/x
  3. Step 3: Cross multiply
    115,300.78x = 172,869.48 × 51,223.73
  4. Step 4: Simplify right side
    115,300.78x = 8,855,018,704.41
  5. Step 5: Solve for x
    x = 8,855,018,704.41/115,300.78
  6. Step 6: Final answer
    x = 76,799.30

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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.