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Finding the Fourth Proportional to 132,560.82, 182,873.50 and 78,815.30

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Solution

The fourth proportional to 132,560.82, 182,873.50 and 78,815.30 is: 108,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,560.82 : 182,873.50 = 78,815.30 : x
  2. Step 2: Convert to fraction form
    132,560.82/182,873.50 = 78,815.30/x
  3. Step 3: Cross multiply
    132,560.82x = 182,873.50 × 78,815.30
  4. Step 4: Simplify right side
    132,560.82x = 14,413,228,653.14
  5. Step 5: Solve for x
    x = 14,413,228,653.14/132,560.82
  6. Step 6: Final answer
    x = 108,729.18

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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.