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Finding the Fourth Proportional to 161,215.80, 241,823.70 and 123,963.90

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Solution

The fourth proportional to 161,215.80, 241,823.70 and 123,963.90 is: 185,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,215.80 : 241,823.70 = 123,963.90 : x
  2. Step 2: Convert to fraction form
    161,215.80/241,823.70 = 123,963.90/x
  3. Step 3: Cross multiply
    161,215.80x = 241,823.70 × 123,963.90
  4. Step 4: Simplify right side
    161,215.80x = 29,977,408,964.43
  5. Step 5: Solve for x
    x = 29,977,408,964.43/161,215.80
  6. Step 6: Final answer
    x = 185,945.85

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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.