Home / 132,105.33-182,337.78-81,130.21

Finding the Fourth Proportional to 132,105.33, 182,337.78 and 81,130.21

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Solution

The fourth proportional to 132,105.33, 182,337.78 and 81,130.21 is: 111,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,105.33 : 182,337.78 = 81,130.21 : x
  2. Step 2: Convert to fraction form
    132,105.33/182,337.78 = 81,130.21/x
  3. Step 3: Cross multiply
    132,105.33x = 182,337.78 × 81,130.21
  4. Step 4: Simplify right side
    132,105.33x = 14,793,102,230.73
  5. Step 5: Solve for x
    x = 14,793,102,230.73/132,105.33
  6. Step 6: Final answer
    x = 111,979.60

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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.