Home / 150,715.08-207,986.13-82,730.25

Finding the Fourth Proportional to 150,715.08, 207,986.13 and 82,730.25

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Solution

The fourth proportional to 150,715.08, 207,986.13 and 82,730.25 is: 114,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,715.08 : 207,986.13 = 82,730.25 : x
  2. Step 2: Convert to fraction form
    150,715.08/207,986.13 = 82,730.25/x
  3. Step 3: Cross multiply
    150,715.08x = 207,986.13 × 82,730.25
  4. Step 4: Simplify right side
    150,715.08x = 17,206,744,531.43
  5. Step 5: Solve for x
    x = 17,206,744,531.43/150,715.08
  6. Step 6: Final answer
    x = 114,167.37

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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.