Home / 134,823.20-202,234.80-90,471.20

Finding the Fourth Proportional to 134,823.20, 202,234.80 and 90,471.20

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Solution

The fourth proportional to 134,823.20, 202,234.80 and 90,471.20 is: 135,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,823.20 : 202,234.80 = 90,471.20 : x
  2. Step 2: Convert to fraction form
    134,823.20/202,234.80 = 90,471.20/x
  3. Step 3: Cross multiply
    134,823.20x = 202,234.80 × 90,471.20
  4. Step 4: Simplify right side
    134,823.20x = 18,296,425,037.76
  5. Step 5: Solve for x
    x = 18,296,425,037.76/134,823.20
  6. Step 6: Final answer
    x = 135,706.80

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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.