Home / 99,636.80-149,455.20-60,173.60

Finding the Fourth Proportional to 99,636.80, 149,455.20 and 60,173.60

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Solution

The fourth proportional to 99,636.80, 149,455.20 and 60,173.60 is: 90,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,636.80 : 149,455.20 = 60,173.60 : x
  2. Step 2: Convert to fraction form
    99,636.80/149,455.20 = 60,173.60/x
  3. Step 3: Cross multiply
    99,636.80x = 149,455.20 × 60,173.60
  4. Step 4: Simplify right side
    99,636.80x = 8,993,257,422.72
  5. Step 5: Solve for x
    x = 8,993,257,422.72/99,636.80
  6. Step 6: Final answer
    x = 90,260.40

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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.