Home / 90,136.00-135,194.26-30,157.68

Finding the Fourth Proportional to 90,136.00, 135,194.26 and 30,157.68

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Solution

The fourth proportional to 90,136.00, 135,194.26 and 30,157.68 is: 45,233.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,136.00 : 135,194.26 = 30,157.68 : x
  2. Step 2: Convert to fraction form
    90,136.00/135,194.26 = 30,157.68/x
  3. Step 3: Cross multiply
    90,136.00x = 135,194.26 × 30,157.68
  4. Step 4: Simplify right side
    90,136.00x = 4,077,144,892.93
  5. Step 5: Solve for x
    x = 4,077,144,892.93/90,136.00
  6. Step 6: Final answer
    x = 45,233.26

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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.