Home / 168,399.36-232,376.40-107,863.20

Finding the Fourth Proportional to 168,399.36, 232,376.40 and 107,863.20

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Solution

The fourth proportional to 168,399.36, 232,376.40 and 107,863.20 is: 148,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,399.36 : 232,376.40 = 107,863.20 : x
  2. Step 2: Convert to fraction form
    168,399.36/232,376.40 = 107,863.20/x
  3. Step 3: Cross multiply
    168,399.36x = 232,376.40 × 107,863.20
  4. Step 4: Simplify right side
    168,399.36x = 25,064,862,108.48
  5. Step 5: Solve for x
    x = 25,064,862,108.48/168,399.36
  6. Step 6: Final answer
    x = 148,841.79

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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.