Home / 127,840.55-191,788.50-48,954.78

Finding the Fourth Proportional to 127,840.55, 191,788.50 and 48,954.78

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Solution

The fourth proportional to 127,840.55, 191,788.50 and 48,954.78 is: 73,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,840.55 : 191,788.50 = 48,954.78 : x
  2. Step 2: Convert to fraction form
    127,840.55/191,788.50 = 48,954.78/x
  3. Step 3: Cross multiply
    127,840.55x = 191,788.50 × 48,954.78
  4. Step 4: Simplify right side
    127,840.55x = 9,388,962,865.09
  5. Step 5: Solve for x
    x = 9,388,962,865.09/127,840.55
  6. Step 6: Final answer
    x = 73,442.76

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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.