Home / 150,379.12-207,509.41-86,704.62

Finding the Fourth Proportional to 150,379.12, 207,509.41 and 86,704.62

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Solution

The fourth proportional to 150,379.12, 207,509.41 and 86,704.62 is: 119,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,379.12 : 207,509.41 = 86,704.62 : x
  2. Step 2: Convert to fraction form
    150,379.12/207,509.41 = 86,704.62/x
  3. Step 3: Cross multiply
    150,379.12x = 207,509.41 × 86,704.62
  4. Step 4: Simplify right side
    150,379.12x = 17,992,024,540.47
  5. Step 5: Solve for x
    x = 17,992,024,540.47/150,379.12
  6. Step 6: Final answer
    x = 119,644.43

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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.