Home / 138,847.55-191,605.75-82,258.92

Finding the Fourth Proportional to 138,847.55, 191,605.75 and 82,258.92

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Solution

The fourth proportional to 138,847.55, 191,605.75 and 82,258.92 is: 113,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,847.55 : 191,605.75 = 82,258.92 : x
  2. Step 2: Convert to fraction form
    138,847.55/191,605.75 = 82,258.92/x
  3. Step 3: Cross multiply
    138,847.55x = 191,605.75 × 82,258.92
  4. Step 4: Simplify right side
    138,847.55x = 15,761,282,060.79
  5. Step 5: Solve for x
    x = 15,761,282,060.79/138,847.55
  6. Step 6: Final answer
    x = 113,515.02

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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.