Home / 131,654.92-197,394.78-72,518.44

Finding the Fourth Proportional to 131,654.92, 197,394.78 and 72,518.44

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Solution

The fourth proportional to 131,654.92, 197,394.78 and 72,518.44 is: 108,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.92 : 197,394.78 = 72,518.44 : x
  2. Step 2: Convert to fraction form
    131,654.92/197,394.78 = 72,518.44/x
  3. Step 3: Cross multiply
    131,654.92x = 197,394.78 × 72,518.44
  4. Step 4: Simplify right side
    131,654.92x = 14,314,761,509.74
  5. Step 5: Solve for x
    x = 14,314,761,509.74/131,654.92
  6. Step 6: Final answer
    x = 108,729.41

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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.