Home / 133,842.72-184,687.92-77,272.80

Finding the Fourth Proportional to 133,842.72, 184,687.92 and 77,272.80

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Solution

The fourth proportional to 133,842.72, 184,687.92 and 77,272.80 is: 106,627.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,842.72 : 184,687.92 = 77,272.80 : x
  2. Step 2: Convert to fraction form
    133,842.72/184,687.92 = 77,272.80/x
  3. Step 3: Cross multiply
    133,842.72x = 184,687.92 × 77,272.80
  4. Step 4: Simplify right side
    133,842.72x = 14,271,352,704.58
  5. Step 5: Solve for x
    x = 14,271,352,704.58/133,842.72
  6. Step 6: Final answer
    x = 106,627.78

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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.