Home / 104,301.72-156,452.27-90,219.87

Finding the Fourth Proportional to 104,301.72, 156,452.27 and 90,219.87

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Solution

The fourth proportional to 104,301.72, 156,452.27 and 90,219.87 is: 135,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,301.72 : 156,452.27 = 90,219.87 : x
  2. Step 2: Convert to fraction form
    104,301.72/156,452.27 = 90,219.87/x
  3. Step 3: Cross multiply
    104,301.72x = 156,452.27 × 90,219.87
  4. Step 4: Simplify right side
    104,301.72x = 14,115,103,460.60
  5. Step 5: Solve for x
    x = 14,115,103,460.60/104,301.72
  6. Step 6: Final answer
    x = 135,329.54

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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.