Home / 40,186.90-60,280.03-12,106.86

Finding the Fourth Proportional to 40,186.90, 60,280.03 and 12,106.86

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Solution

The fourth proportional to 40,186.90, 60,280.03 and 12,106.86 is: 18,160.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,186.90 : 60,280.03 = 12,106.86 : x
  2. Step 2: Convert to fraction form
    40,186.90/60,280.03 = 12,106.86/x
  3. Step 3: Cross multiply
    40,186.90x = 60,280.03 × 12,106.86
  4. Step 4: Simplify right side
    40,186.90x = 729,801,884.01
  5. Step 5: Solve for x
    x = 729,801,884.01/40,186.90
  6. Step 6: Final answer
    x = 18,160.19

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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.