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Finding the Fourth Proportional to 110,549.20, 165,823.80 and 90,866.20

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Solution

The fourth proportional to 110,549.20, 165,823.80 and 90,866.20 is: 136,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,549.20 : 165,823.80 = 90,866.20 : x
  2. Step 2: Convert to fraction form
    110,549.20/165,823.80 = 90,866.20/x
  3. Step 3: Cross multiply
    110,549.20x = 165,823.80 × 90,866.20
  4. Step 4: Simplify right side
    110,549.20x = 15,067,778,575.56
  5. Step 5: Solve for x
    x = 15,067,778,575.56/110,549.20
  6. Step 6: Final answer
    x = 136,299.30

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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.