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Finding the Fourth Proportional to 160,500.28, 240,786.90 and 85,580.92

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Solution

The fourth proportional to 160,500.28, 240,786.90 and 85,580.92 is: 128,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,500.28 : 240,786.90 = 85,580.92 : x
  2. Step 2: Convert to fraction form
    160,500.28/240,786.90 = 85,580.92/x
  3. Step 3: Cross multiply
    160,500.28x = 240,786.90 × 85,580.92
  4. Step 4: Simplify right side
    160,500.28x = 20,606,764,425.95
  5. Step 5: Solve for x
    x = 20,606,764,425.95/160,500.28
  6. Step 6: Final answer
    x = 128,390.83

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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.