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Finding the Fourth Proportional to 149,090.40, 223,635.60 and 89,895.60

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Solution

The fourth proportional to 149,090.40, 223,635.60 and 89,895.60 is: 134,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,090.40 : 223,635.60 = 89,895.60 : x
  2. Step 2: Convert to fraction form
    149,090.40/223,635.60 = 89,895.60/x
  3. Step 3: Cross multiply
    149,090.40x = 223,635.60 × 89,895.60
  4. Step 4: Simplify right side
    149,090.40x = 20,103,856,443.36
  5. Step 5: Solve for x
    x = 20,103,856,443.36/149,090.40
  6. Step 6: Final answer
    x = 134,843.40

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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.