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Finding the Fourth Proportional to 150,855.76, 208,218.36 and 87,184.36

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Solution

The fourth proportional to 150,855.76, 208,218.36 and 87,184.36 is: 120,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,855.76 : 208,218.36 = 87,184.36 : x
  2. Step 2: Convert to fraction form
    150,855.76/208,218.36 = 87,184.36/x
  3. Step 3: Cross multiply
    150,855.76x = 208,218.36 × 87,184.36
  4. Step 4: Simplify right side
    150,855.76x = 18,153,384,456.85
  5. Step 5: Solve for x
    x = 18,153,384,456.85/150,855.76
  6. Step 6: Final answer
    x = 120,336.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.