Home / 150,122.89-207,167.81-82,139.07

Finding the Fourth Proportional to 150,122.89, 207,167.81 and 82,139.07

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Solution

The fourth proportional to 150,122.89, 207,167.81 and 82,139.07 is: 113,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,122.89 : 207,167.81 = 82,139.07 : x
  2. Step 2: Convert to fraction form
    150,122.89/207,167.81 = 82,139.07/x
  3. Step 3: Cross multiply
    150,122.89x = 207,167.81 × 82,139.07
  4. Step 4: Simplify right side
    150,122.89x = 17,016,571,247.34
  5. Step 5: Solve for x
    x = 17,016,571,247.34/150,122.89
  6. Step 6: Final answer
    x = 113,350.94

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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.