Home / 131,897.12-197,765.92-51,839.28

Finding the Fourth Proportional to 131,897.12, 197,765.92 and 51,839.28

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Solution

The fourth proportional to 131,897.12, 197,765.92 and 51,839.28 is: 77,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,897.12 : 197,765.92 = 51,839.28 : x
  2. Step 2: Convert to fraction form
    131,897.12/197,765.92 = 51,839.28/x
  3. Step 3: Cross multiply
    131,897.12x = 197,765.92 × 51,839.28
  4. Step 4: Simplify right side
    131,897.12x = 10,252,042,901.34
  5. Step 5: Solve for x
    x = 10,252,042,901.34/131,897.12
  6. Step 6: Final answer
    x = 77,727.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.