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Finding the Fourth Proportional to 161,164.40, 241,661.55 and 54,511.70

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Solution

The fourth proportional to 161,164.40, 241,661.55 and 54,511.70 is: 81,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,164.40 : 241,661.55 = 54,511.70 : x
  2. Step 2: Convert to fraction form
    161,164.40/241,661.55 = 54,511.70/x
  3. Step 3: Cross multiply
    161,164.40x = 241,661.55 × 54,511.70
  4. Step 4: Simplify right side
    161,164.40x = 13,173,381,915.14
  5. Step 5: Solve for x
    x = 13,173,381,915.14/161,164.40
  6. Step 6: Final answer
    x = 81,738.78

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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.