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Finding the Fourth Proportional to 132,684.60, 199,026.90 and 90,694.20

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Solution

The fourth proportional to 132,684.60, 199,026.90 and 90,694.20 is: 136,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,684.60 : 199,026.90 = 90,694.20 : x
  2. Step 2: Convert to fraction form
    132,684.60/199,026.90 = 90,694.20/x
  3. Step 3: Cross multiply
    132,684.60x = 199,026.90 × 90,694.20
  4. Step 4: Simplify right side
    132,684.60x = 18,050,585,473.98
  5. Step 5: Solve for x
    x = 18,050,585,473.98/132,684.60
  6. Step 6: Final answer
    x = 136,041.30

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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.