Home / 143,191.10-197,592.14-82,765.66

Finding the Fourth Proportional to 143,191.10, 197,592.14 and 82,765.66

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Solution

The fourth proportional to 143,191.10, 197,592.14 and 82,765.66 is: 114,209.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,191.10 : 197,592.14 = 82,765.66 : x
  2. Step 2: Convert to fraction form
    143,191.10/197,592.14 = 82,765.66/x
  3. Step 3: Cross multiply
    143,191.10x = 197,592.14 × 82,765.66
  4. Step 4: Simplify right side
    143,191.10x = 16,353,843,877.91
  5. Step 5: Solve for x
    x = 16,353,843,877.91/143,191.10
  6. Step 6: Final answer
    x = 114,209.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.