Home / 115,167.17-172,709.43-44,109.78

Finding the Fourth Proportional to 115,167.17, 172,709.43 and 44,109.78

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Solution

The fourth proportional to 115,167.17, 172,709.43 and 44,109.78 is: 66,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,167.17 : 172,709.43 = 44,109.78 : x
  2. Step 2: Convert to fraction form
    115,167.17/172,709.43 = 44,109.78/x
  3. Step 3: Cross multiply
    115,167.17x = 172,709.43 × 44,109.78
  4. Step 4: Simplify right side
    115,167.17x = 7,618,174,961.23
  5. Step 5: Solve for x
    x = 7,618,174,961.23/115,167.17
  6. Step 6: Final answer
    x = 66,148.85

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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.