Home / 197,689.68-272,812.32-107,046.72

Finding the Fourth Proportional to 197,689.68, 272,812.32 and 107,046.72

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Solution

The fourth proportional to 197,689.68, 272,812.32 and 107,046.72 is: 147,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,689.68 : 272,812.32 = 107,046.72 : x
  2. Step 2: Convert to fraction form
    197,689.68/272,812.32 = 107,046.72/x
  3. Step 3: Cross multiply
    197,689.68x = 272,812.32 × 107,046.72
  4. Step 4: Simplify right side
    197,689.68x = 29,203,664,031.59
  5. Step 5: Solve for x
    x = 29,203,664,031.59/197,689.68
  6. Step 6: Final answer
    x = 147,724.78

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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.