Home / 115,375.43-173,054.96-31,140.39

Finding the Fourth Proportional to 115,375.43, 173,054.96 and 31,140.39

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Solution

The fourth proportional to 115,375.43, 173,054.96 and 31,140.39 is: 46,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,375.43 : 173,054.96 = 31,140.39 : x
  2. Step 2: Convert to fraction form
    115,375.43/173,054.96 = 31,140.39/x
  3. Step 3: Cross multiply
    115,375.43x = 173,054.96 × 31,140.39
  4. Step 4: Simplify right side
    115,375.43x = 5,388,999,555.87
  5. Step 5: Solve for x
    x = 5,388,999,555.87/115,375.43
  6. Step 6: Final answer
    x = 46,708.38

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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.