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Finding the Fourth Proportional to 100,182.80, 150,218.04 and 68,628.50

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Solution

The fourth proportional to 100,182.80, 150,218.04 and 68,628.50 is: 102,904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,182.80 : 150,218.04 = 68,628.50 : x
  2. Step 2: Convert to fraction form
    100,182.80/150,218.04 = 68,628.50/x
  3. Step 3: Cross multiply
    100,182.80x = 150,218.04 × 68,628.50
  4. Step 4: Simplify right side
    100,182.80x = 10,309,238,758.14
  5. Step 5: Solve for x
    x = 10,309,238,758.14/100,182.80
  6. Step 6: Final answer
    x = 102,904.28

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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.