Home / 124,736.07-172,317.92-107,939.91

Finding the Fourth Proportional to 124,736.07, 172,317.92 and 107,939.91

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Solution

The fourth proportional to 124,736.07, 172,317.92 and 107,939.91 is: 149,114.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,736.07 : 172,317.92 = 107,939.91 : x
  2. Step 2: Convert to fraction form
    124,736.07/172,317.92 = 107,939.91/x
  3. Step 3: Cross multiply
    124,736.07x = 172,317.92 × 107,939.91
  4. Step 4: Simplify right side
    124,736.07x = 18,599,980,236.49
  5. Step 5: Solve for x
    x = 18,599,980,236.49/124,736.07
  6. Step 6: Final answer
    x = 149,114.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.