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Finding the Fourth Proportional to 110,540.70, 165,811.05 and 101,987.10

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Solution

The fourth proportional to 110,540.70, 165,811.05 and 101,987.10 is: 152,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,540.70 : 165,811.05 = 101,987.10 : x
  2. Step 2: Convert to fraction form
    110,540.70/165,811.05 = 101,987.10/x
  3. Step 3: Cross multiply
    110,540.70x = 165,811.05 × 101,987.10
  4. Step 4: Simplify right side
    110,540.70x = 16,910,588,137.46
  5. Step 5: Solve for x
    x = 16,910,588,137.46/110,540.70
  6. Step 6: Final answer
    x = 152,980.65

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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.