Home / 150,003.40-207,004.88-82,020.68

Finding the Fourth Proportional to 150,003.40, 207,004.88 and 82,020.68

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Solution

The fourth proportional to 150,003.40, 207,004.88 and 82,020.68 is: 113,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,003.40 : 207,004.88 = 82,020.68 : x
  2. Step 2: Convert to fraction form
    150,003.40/207,004.88 = 82,020.68/x
  3. Step 3: Cross multiply
    150,003.40x = 207,004.88 × 82,020.68
  4. Step 4: Simplify right side
    150,003.40x = 16,978,681,020.92
  5. Step 5: Solve for x
    x = 16,978,681,020.92/150,003.40
  6. Step 6: Final answer
    x = 113,188.64

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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.