Home / 131,675.49-197,103.78-71,553.78

Finding the Fourth Proportional to 131,675.49, 197,103.78 and 71,553.78

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Solution

The fourth proportional to 131,675.49, 197,103.78 and 71,553.78 is: 107,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,675.49 : 197,103.78 = 71,553.78 : x
  2. Step 2: Convert to fraction form
    131,675.49/197,103.78 = 71,553.78/x
  3. Step 3: Cross multiply
    131,675.49x = 197,103.78 × 71,553.78
  4. Step 4: Simplify right side
    131,675.49x = 14,103,520,511.29
  5. Step 5: Solve for x
    x = 14,103,520,511.29/131,675.49
  6. Step 6: Final answer
    x = 107,108.17

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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.