Home / 131,440.20-197,189.10-52,534.60

Finding the Fourth Proportional to 131,440.20, 197,189.10 and 52,534.60

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Solution

The fourth proportional to 131,440.20, 197,189.10 and 52,534.60 is: 78,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.20 : 197,189.10 = 52,534.60 : x
  2. Step 2: Convert to fraction form
    131,440.20/197,189.10 = 52,534.60/x
  3. Step 3: Cross multiply
    131,440.20x = 197,189.10 × 52,534.60
  4. Step 4: Simplify right side
    131,440.20x = 10,359,250,492.86
  5. Step 5: Solve for x
    x = 10,359,250,492.86/131,440.20
  6. Step 6: Final answer
    x = 78,813.41

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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.