Home / 213,536.20-320,045.10-95,081.80

Finding the Fourth Proportional to 213,536.20, 320,045.10 and 95,081.80

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Solution

The fourth proportional to 213,536.20, 320,045.10 and 95,081.80 is: 142,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,536.20 : 320,045.10 = 95,081.80 : x
  2. Step 2: Convert to fraction form
    213,536.20/320,045.10 = 95,081.80/x
  3. Step 3: Cross multiply
    213,536.20x = 320,045.10 × 95,081.80
  4. Step 4: Simplify right side
    213,536.20x = 30,430,464,189.18
  5. Step 5: Solve for x
    x = 30,430,464,189.18/213,536.20
  6. Step 6: Final answer
    x = 142,507.29

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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.