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Finding the Fourth Proportional to 118,624.50, 178,363.49 and 109,377.54

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Solution

The fourth proportional to 118,624.50, 178,363.49 and 109,377.54 is: 164,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,624.50 : 178,363.49 = 109,377.54 : x
  2. Step 2: Convert to fraction form
    118,624.50/178,363.49 = 109,377.54/x
  3. Step 3: Cross multiply
    118,624.50x = 178,363.49 × 109,377.54
  4. Step 4: Simplify right side
    118,624.50x = 19,508,959,215.13
  5. Step 5: Solve for x
    x = 19,508,959,215.13/118,624.50
  6. Step 6: Final answer
    x = 164,459.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.