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Finding the Fourth Proportional to 150,727.80, 208,025.88 and 90,300.96

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Solution

The fourth proportional to 150,727.80, 208,025.88 and 90,300.96 is: 124,628.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,727.80 : 208,025.88 = 90,300.96 : x
  2. Step 2: Convert to fraction form
    150,727.80/208,025.88 = 90,300.96/x
  3. Step 3: Cross multiply
    150,727.80x = 208,025.88 × 90,300.96
  4. Step 4: Simplify right side
    150,727.80x = 18,784,936,668.84
  5. Step 5: Solve for x
    x = 18,784,936,668.84/150,727.80
  6. Step 6: Final answer
    x = 124,628.22

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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.