Home / 113,980.20-170,663.10-82,645.80

Finding the Fourth Proportional to 113,980.20, 170,663.10 and 82,645.80

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Solution

The fourth proportional to 113,980.20, 170,663.10 and 82,645.80 is: 123,745.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,980.20 : 170,663.10 = 82,645.80 : x
  2. Step 2: Convert to fraction form
    113,980.20/170,663.10 = 82,645.80/x
  3. Step 3: Cross multiply
    113,980.20x = 170,663.10 × 82,645.80
  4. Step 4: Simplify right side
    113,980.20x = 14,104,588,429.98
  5. Step 5: Solve for x
    x = 14,104,588,429.98/113,980.20
  6. Step 6: Final answer
    x = 123,745.95

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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.