Home / 173,002.45-238,749.27-100,399.75

Finding the Fourth Proportional to 173,002.45, 238,749.27 and 100,399.75

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Solution

The fourth proportional to 173,002.45, 238,749.27 and 100,399.75 is: 138,555.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,002.45 : 238,749.27 = 100,399.75 : x
  2. Step 2: Convert to fraction form
    173,002.45/238,749.27 = 100,399.75/x
  3. Step 3: Cross multiply
    173,002.45x = 238,749.27 × 100,399.75
  4. Step 4: Simplify right side
    173,002.45x = 23,970,367,020.68
  5. Step 5: Solve for x
    x = 23,970,367,020.68/173,002.45
  6. Step 6: Final answer
    x = 138,555.07

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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.