Home / 197,721.61-272,857.14-107,077.61

Finding the Fourth Proportional to 197,721.61, 272,857.14 and 107,077.61

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Solution

The fourth proportional to 197,721.61, 272,857.14 and 107,077.61 is: 147,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,721.61 : 272,857.14 = 107,077.61 : x
  2. Step 2: Convert to fraction form
    197,721.61/272,857.14 = 107,077.61/x
  3. Step 3: Cross multiply
    197,721.61x = 272,857.14 × 107,077.61
  4. Step 4: Simplify right side
    197,721.61x = 29,216,891,104.78
  5. Step 5: Solve for x
    x = 29,216,891,104.78/197,721.61
  6. Step 6: Final answer
    x = 147,767.82

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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.