Home / 239,107.57-329,955.27-131,656.61

Finding the Fourth Proportional to 239,107.57, 329,955.27 and 131,656.61

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Solution

The fourth proportional to 239,107.57, 329,955.27 and 131,656.61 is: 181,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,107.57 : 329,955.27 = 131,656.61 : x
  2. Step 2: Convert to fraction form
    239,107.57/329,955.27 = 131,656.61/x
  3. Step 3: Cross multiply
    239,107.57x = 329,955.27 × 131,656.61
  4. Step 4: Simplify right side
    239,107.57x = 43,440,792,299.83
  5. Step 5: Solve for x
    x = 43,440,792,299.83/239,107.57
  6. Step 6: Final answer
    x = 181,678.87

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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.