Home / 149,999.85-207,002.79-82,021.08

Finding the Fourth Proportional to 149,999.85, 207,002.79 and 82,021.08

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Solution

The fourth proportional to 149,999.85, 207,002.79 and 82,021.08 is: 113,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,999.85 : 207,002.79 = 82,021.08 : x
  2. Step 2: Convert to fraction form
    149,999.85/207,002.79 = 82,021.08/x
  3. Step 3: Cross multiply
    149,999.85x = 207,002.79 × 82,021.08
  4. Step 4: Simplify right side
    149,999.85x = 16,978,592,398.81
  5. Step 5: Solve for x
    x = 16,978,592,398.81/149,999.85
  6. Step 6: Final answer
    x = 113,190.73

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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.