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Finding the Fourth Proportional to 150,087.52, 207,112.08 and 82,090.90

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Solution

The fourth proportional to 150,087.52, 207,112.08 and 82,090.90 is: 113,280.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,087.52 : 207,112.08 = 82,090.90 : x
  2. Step 2: Convert to fraction form
    150,087.52/207,112.08 = 82,090.90/x
  3. Step 3: Cross multiply
    150,087.52x = 207,112.08 × 82,090.90
  4. Step 4: Simplify right side
    150,087.52x = 17,002,017,048.07
  5. Step 5: Solve for x
    x = 17,002,017,048.07/150,087.52
  6. Step 6: Final answer
    x = 113,280.68

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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.