Home / 105,921.78-158,904.54-31,044.36

Finding the Fourth Proportional to 105,921.78, 158,904.54 and 31,044.36

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Solution

The fourth proportional to 105,921.78, 158,904.54 and 31,044.36 is: 46,572.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,921.78 : 158,904.54 = 31,044.36 : x
  2. Step 2: Convert to fraction form
    105,921.78/158,904.54 = 31,044.36/x
  3. Step 3: Cross multiply
    105,921.78x = 158,904.54 × 31,044.36
  4. Step 4: Simplify right side
    105,921.78x = 4,933,089,745.39
  5. Step 5: Solve for x
    x = 4,933,089,745.39/105,921.78
  6. Step 6: Final answer
    x = 46,572.95

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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.