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Finding the Fourth Proportional to 162,115.40, 242,589.90 and 109,627.40

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Solution

The fourth proportional to 162,115.40, 242,589.90 and 109,627.40 is: 164,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,115.40 : 242,589.90 = 109,627.40 : x
  2. Step 2: Convert to fraction form
    162,115.40/242,589.90 = 109,627.40/x
  3. Step 3: Cross multiply
    162,115.40x = 242,589.90 × 109,627.40
  4. Step 4: Simplify right side
    162,115.40x = 26,594,500,003.26
  5. Step 5: Solve for x
    x = 26,594,500,003.26/162,115.40
  6. Step 6: Final answer
    x = 164,046.72

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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.