Home / 189,633.76-261,702.20-109,061.26

Finding the Fourth Proportional to 189,633.76, 261,702.20 and 109,061.26

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Solution

The fourth proportional to 189,633.76, 261,702.20 and 109,061.26 is: 150,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,633.76 : 261,702.20 = 109,061.26 : x
  2. Step 2: Convert to fraction form
    189,633.76/261,702.20 = 109,061.26/x
  3. Step 3: Cross multiply
    189,633.76x = 261,702.20 × 109,061.26
  4. Step 4: Simplify right side
    189,633.76x = 28,541,571,676.77
  5. Step 5: Solve for x
    x = 28,541,571,676.77/189,633.76
  6. Step 6: Final answer
    x = 150,508.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.