Home / 150,139.23-207,190.33-82,155.45

Finding the Fourth Proportional to 150,139.23, 207,190.33 and 82,155.45

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Solution

The fourth proportional to 150,139.23, 207,190.33 and 82,155.45 is: 113,373.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,139.23 : 207,190.33 = 82,155.45 : x
  2. Step 2: Convert to fraction form
    150,139.23/207,190.33 = 82,155.45/x
  3. Step 3: Cross multiply
    150,139.23x = 207,190.33 × 82,155.45
  4. Step 4: Simplify right side
    150,139.23x = 17,021,814,796.80
  5. Step 5: Solve for x
    x = 17,021,814,796.80/150,139.23
  6. Step 6: Final answer
    x = 113,373.53

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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.