Home / 109,320.44-163,807.94-82,539.68

Finding the Fourth Proportional to 109,320.44, 163,807.94 and 82,539.68

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Solution

The fourth proportional to 109,320.44, 163,807.94 and 82,539.68 is: 123,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,320.44 : 163,807.94 = 82,539.68 : x
  2. Step 2: Convert to fraction form
    109,320.44/163,807.94 = 82,539.68/x
  3. Step 3: Cross multiply
    109,320.44x = 163,807.94 × 82,539.68
  4. Step 4: Simplify right side
    109,320.44x = 13,520,654,949.06
  5. Step 5: Solve for x
    x = 13,520,654,949.06/109,320.44
  6. Step 6: Final answer
    x = 123,679.11

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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.