Home / 156,690.96-234,932.16-80,836.80

Finding the Fourth Proportional to 156,690.96, 234,932.16 and 80,836.80

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Solution

The fourth proportional to 156,690.96, 234,932.16 and 80,836.80 is: 121,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,690.96 : 234,932.16 = 80,836.80 : x
  2. Step 2: Convert to fraction form
    156,690.96/234,932.16 = 80,836.80/x
  3. Step 3: Cross multiply
    156,690.96x = 234,932.16 × 80,836.80
  4. Step 4: Simplify right side
    156,690.96x = 18,991,164,031.49
  5. Step 5: Solve for x
    x = 18,991,164,031.49/156,690.96
  6. Step 6: Final answer
    x = 121,201.40

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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.