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Finding the Fourth Proportional to 110,116.70, 165,175.05 and 91,745.90

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Solution

The fourth proportional to 110,116.70, 165,175.05 and 91,745.90 is: 137,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,116.70 : 165,175.05 = 91,745.90 : x
  2. Step 2: Convert to fraction form
    110,116.70/165,175.05 = 91,745.90/x
  3. Step 3: Cross multiply
    110,116.70x = 165,175.05 × 91,745.90
  4. Step 4: Simplify right side
    110,116.70x = 15,154,133,619.80
  5. Step 5: Solve for x
    x = 15,154,133,619.80/110,116.70
  6. Step 6: Final answer
    x = 137,618.85

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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.