Home / 139,848.64-209,791.24-51,143.92

Finding the Fourth Proportional to 139,848.64, 209,791.24 and 51,143.92

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Solution

The fourth proportional to 139,848.64, 209,791.24 and 51,143.92 is: 76,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,848.64 : 209,791.24 = 51,143.92 : x
  2. Step 2: Convert to fraction form
    139,848.64/209,791.24 = 51,143.92/x
  3. Step 3: Cross multiply
    139,848.64x = 209,791.24 × 51,143.92
  4. Step 4: Simplify right side
    139,848.64x = 10,729,546,395.26
  5. Step 5: Solve for x
    x = 10,729,546,395.26/139,848.64
  6. Step 6: Final answer
    x = 76,722.57

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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.