Home / 109,236.72-163,702.76-82,560.81

Finding the Fourth Proportional to 109,236.72, 163,702.76 and 82,560.81

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Solution

The fourth proportional to 109,236.72, 163,702.76 and 82,560.81 is: 123,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,236.72 : 163,702.76 = 82,560.81 : x
  2. Step 2: Convert to fraction form
    109,236.72/163,702.76 = 82,560.81/x
  3. Step 3: Cross multiply
    109,236.72x = 163,702.76 × 82,560.81
  4. Step 4: Simplify right side
    109,236.72x = 13,515,432,052.03
  5. Step 5: Solve for x
    x = 13,515,432,052.03/109,236.72
  6. Step 6: Final answer
    x = 123,726.09

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1.5x scale

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.