Home / 231,921.36-320,096.88-136,509.84

Finding the Fourth Proportional to 231,921.36, 320,096.88 and 136,509.84

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Solution

The fourth proportional to 231,921.36, 320,096.88 and 136,509.84 is: 188,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,921.36 : 320,096.88 = 136,509.84 : x
  2. Step 2: Convert to fraction form
    231,921.36/320,096.88 = 136,509.84/x
  3. Step 3: Cross multiply
    231,921.36x = 320,096.88 × 136,509.84
  4. Step 4: Simplify right side
    231,921.36x = 43,696,373,873.30
  5. Step 5: Solve for x
    x = 43,696,373,873.30/231,921.36
  6. Step 6: Final answer
    x = 188,410.30

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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.