Home / 104,299.72-156,449.27-90,217.87

Finding the Fourth Proportional to 104,299.72, 156,449.27 and 90,217.87

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Solution

The fourth proportional to 104,299.72, 156,449.27 and 90,217.87 is: 135,326.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,299.72 : 156,449.27 = 90,217.87 : x
  2. Step 2: Convert to fraction form
    104,299.72/156,449.27 = 90,217.87/x
  3. Step 3: Cross multiply
    104,299.72x = 156,449.27 × 90,217.87
  4. Step 4: Simplify right side
    104,299.72x = 14,114,519,736.88
  5. Step 5: Solve for x
    x = 14,114,519,736.88/104,299.72
  6. Step 6: Final answer
    x = 135,326.54

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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.