Home / 142,827.21-214,270.83-54,078.75

Finding the Fourth Proportional to 142,827.21, 214,270.83 and 54,078.75

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Solution

The fourth proportional to 142,827.21, 214,270.83 and 54,078.75 is: 81,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,827.21 : 214,270.83 = 54,078.75 : x
  2. Step 2: Convert to fraction form
    142,827.21/214,270.83 = 54,078.75/x
  3. Step 3: Cross multiply
    142,827.21x = 214,270.83 × 54,078.75
  4. Step 4: Simplify right side
    142,827.21x = 11,587,498,647.86
  5. Step 5: Solve for x
    x = 11,587,498,647.86/142,827.21
  6. Step 6: Final answer
    x = 81,129.49

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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.