Home / 115,137.97-172,730.24-48,578.26

Finding the Fourth Proportional to 115,137.97, 172,730.24 and 48,578.26

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Solution

The fourth proportional to 115,137.97, 172,730.24 and 48,578.26 is: 72,877.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,137.97 : 172,730.24 = 48,578.26 : x
  2. Step 2: Convert to fraction form
    115,137.97/172,730.24 = 48,578.26/x
  3. Step 3: Cross multiply
    115,137.97x = 172,730.24 × 48,578.26
  4. Step 4: Simplify right side
    115,137.97x = 8,390,934,265.69
  5. Step 5: Solve for x
    x = 8,390,934,265.69/115,137.97
  6. Step 6: Final answer
    x = 72,877.21

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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.