Home / 239,128.32-329,984.32-131,694.72

Finding the Fourth Proportional to 239,128.32, 329,984.32 and 131,694.72

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Solution

The fourth proportional to 239,128.32, 329,984.32 and 131,694.72 is: 181,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,128.32 : 329,984.32 = 131,694.72 : x
  2. Step 2: Convert to fraction form
    239,128.32/329,984.32 = 131,694.72/x
  3. Step 3: Cross multiply
    239,128.32x = 329,984.32 × 131,694.72
  4. Step 4: Simplify right side
    239,128.32x = 43,457,192,626.79
  5. Step 5: Solve for x
    x = 43,457,192,626.79/239,128.32
  6. Step 6: Final answer
    x = 181,731.69

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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.