Home / 131,260.88-196,848.12-72,163.28

Finding the Fourth Proportional to 131,260.88, 196,848.12 and 72,163.28

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Solution

The fourth proportional to 131,260.88, 196,848.12 and 72,163.28 is: 108,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,260.88 : 196,848.12 = 72,163.28 : x
  2. Step 2: Convert to fraction form
    131,260.88/196,848.12 = 72,163.28/x
  3. Step 3: Cross multiply
    131,260.88x = 196,848.12 × 72,163.28
  4. Step 4: Simplify right side
    131,260.88x = 14,205,206,001.03
  5. Step 5: Solve for x
    x = 14,205,206,001.03/131,260.88
  6. Step 6: Final answer
    x = 108,221.17

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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.