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Finding the Fourth Proportional to 100,653.10, 150,797.40 and 79,730.80

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Solution

The fourth proportional to 100,653.10, 150,797.40 and 79,730.80 is: 119,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,653.10 : 150,797.40 = 79,730.80 : x
  2. Step 2: Convert to fraction form
    100,653.10/150,797.40 = 79,730.80/x
  3. Step 3: Cross multiply
    100,653.10x = 150,797.40 × 79,730.80
  4. Step 4: Simplify right side
    100,653.10x = 12,023,197,339.92
  5. Step 5: Solve for x
    x = 12,023,197,339.92/100,653.10
  6. Step 6: Final answer
    x = 119,451.83

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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.