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Finding the Fourth Proportional to 113,620.70, 170,431.03 and 30,514.70

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Solution

The fourth proportional to 113,620.70, 170,431.03 and 30,514.70 is: 45,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,620.70 : 170,431.03 = 30,514.70 : x
  2. Step 2: Convert to fraction form
    113,620.70/170,431.03 = 30,514.70/x
  3. Step 3: Cross multiply
    113,620.70x = 170,431.03 × 30,514.70
  4. Step 4: Simplify right side
    113,620.70x = 5,200,651,751.14
  5. Step 5: Solve for x
    x = 5,200,651,751.14/113,620.70
  6. Step 6: Final answer
    x = 45,772.04

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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.