Home / 115,128.95-172,693.43-35,163.68

Finding the Fourth Proportional to 115,128.95, 172,693.43 and 35,163.68

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Solution

The fourth proportional to 115,128.95, 172,693.43 and 35,163.68 is: 52,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,128.95 : 172,693.43 = 35,163.68 : x
  2. Step 2: Convert to fraction form
    115,128.95/172,693.43 = 35,163.68/x
  3. Step 3: Cross multiply
    115,128.95x = 172,693.43 × 35,163.68
  4. Step 4: Simplify right side
    115,128.95x = 6,072,536,766.54
  5. Step 5: Solve for x
    x = 6,072,536,766.54/115,128.95
  6. Step 6: Final answer
    x = 52,745.53

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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.