Home / 131,438.10-196,811.55-96,186.90

Finding the Fourth Proportional to 131,438.10, 196,811.55 and 96,186.90

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Solution

The fourth proportional to 131,438.10, 196,811.55 and 96,186.90 is: 144,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,438.10 : 196,811.55 = 96,186.90 : x
  2. Step 2: Convert to fraction form
    131,438.10/196,811.55 = 96,186.90/x
  3. Step 3: Cross multiply
    131,438.10x = 196,811.55 × 96,186.90
  4. Step 4: Simplify right side
    131,438.10x = 18,930,692,878.70
  5. Step 5: Solve for x
    x = 18,930,692,878.70/131,438.10
  6. Step 6: Final answer
    x = 144,027.44

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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.