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Finding the Fourth Proportional to 160,194.96, 240,175.80 and 76,991.76

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Solution

The fourth proportional to 160,194.96, 240,175.80 and 76,991.76 is: 115,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,194.96 : 240,175.80 = 76,991.76 : x
  2. Step 2: Convert to fraction form
    160,194.96/240,175.80 = 76,991.76/x
  3. Step 3: Cross multiply
    160,194.96x = 240,175.80 × 76,991.76
  4. Step 4: Simplify right side
    160,194.96x = 18,491,557,551.41
  5. Step 5: Solve for x
    x = 18,491,557,551.41/160,194.96
  6. Step 6: Final answer
    x = 115,431.58

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1.5x scale

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.