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Finding the Fourth Proportional to 132,786.60, 199,410.30 and 70,578.60

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Solution

The fourth proportional to 132,786.60, 199,410.30 and 70,578.60 is: 105,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,786.60 : 199,410.30 = 70,578.60 : x
  2. Step 2: Convert to fraction form
    132,786.60/199,410.30 = 70,578.60/x
  3. Step 3: Cross multiply
    132,786.60x = 199,410.30 × 70,578.60
  4. Step 4: Simplify right side
    132,786.60x = 14,074,099,799.58
  5. Step 5: Solve for x
    x = 14,074,099,799.58/132,786.60
  6. Step 6: Final answer
    x = 105,990.36

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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.