Home / 202,112.40-302,731.20-108,508.80

Finding the Fourth Proportional to 202,112.40, 302,731.20 and 108,508.80

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Solution

The fourth proportional to 202,112.40, 302,731.20 and 108,508.80 is: 162,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,112.40 : 302,731.20 = 108,508.80 : x
  2. Step 2: Convert to fraction form
    202,112.40/302,731.20 = 108,508.80/x
  3. Step 3: Cross multiply
    202,112.40x = 302,731.20 × 108,508.80
  4. Step 4: Simplify right side
    202,112.40x = 32,848,999,234.56
  5. Step 5: Solve for x
    x = 32,848,999,234.56/202,112.40
  6. Step 6: Final answer
    x = 162,528.37

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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.