Home / 142,758.26-214,138.87-57,408.61

Finding the Fourth Proportional to 142,758.26, 214,138.87 and 57,408.61

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Solution

The fourth proportional to 142,758.26, 214,138.87 and 57,408.61 is: 86,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,758.26 : 214,138.87 = 57,408.61 : x
  2. Step 2: Convert to fraction form
    142,758.26/214,138.87 = 57,408.61/x
  3. Step 3: Cross multiply
    142,758.26x = 214,138.87 × 57,408.61
  4. Step 4: Simplify right side
    142,758.26x = 12,293,414,873.67
  5. Step 5: Solve for x
    x = 12,293,414,873.67/142,758.26
  6. Step 6: Final answer
    x = 86,113.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.