Home / 109,236.47-163,702.38-82,560.56

Finding the Fourth Proportional to 109,236.47, 163,702.38 and 82,560.56

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Solution

The fourth proportional to 109,236.47, 163,702.38 and 82,560.56 is: 123,725.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,236.47 : 163,702.38 = 82,560.56 : x
  2. Step 2: Convert to fraction form
    109,236.47/163,702.38 = 82,560.56/x
  3. Step 3: Cross multiply
    109,236.47x = 163,702.38 × 82,560.56
  4. Step 4: Simplify right side
    109,236.47x = 13,515,360,166.13
  5. Step 5: Solve for x
    x = 13,515,360,166.13/109,236.47
  6. Step 6: Final answer
    x = 123,725.71

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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.