Home / 150,137.12-207,264.20-86,462.61

Finding the Fourth Proportional to 150,137.12, 207,264.20 and 86,462.61

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Solution

The fourth proportional to 150,137.12, 207,264.20 and 86,462.61 is: 119,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,137.12 : 207,264.20 = 86,462.61 : x
  2. Step 2: Convert to fraction form
    150,137.12/207,264.20 = 86,462.61/x
  3. Step 3: Cross multiply
    150,137.12x = 207,264.20 × 86,462.61
  4. Step 4: Simplify right side
    150,137.12x = 17,920,603,691.56
  5. Step 5: Solve for x
    x = 17,920,603,691.56/150,137.12
  6. Step 6: Final answer
    x = 119,361.58

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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.