Home / 239,958.46-331,129.04-137,967.72

Finding the Fourth Proportional to 239,958.46, 331,129.04 and 137,967.72

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Solution

The fourth proportional to 239,958.46, 331,129.04 and 137,967.72 is: 190,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,958.46 : 331,129.04 = 137,967.72 : x
  2. Step 2: Convert to fraction form
    239,958.46/331,129.04 = 137,967.72/x
  3. Step 3: Cross multiply
    239,958.46x = 331,129.04 × 137,967.72
  4. Step 4: Simplify right side
    239,958.46x = 45,685,117,018.94
  5. Step 5: Solve for x
    x = 45,685,117,018.94/239,958.46
  6. Step 6: Final answer
    x = 190,387.61

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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.