Home / 173,418.78-239,247.09-137,464.50

Finding the Fourth Proportional to 173,418.78, 239,247.09 and 137,464.50

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Solution

The fourth proportional to 173,418.78, 239,247.09 and 137,464.50 is: 189,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,418.78 : 239,247.09 = 137,464.50 : x
  2. Step 2: Convert to fraction form
    173,418.78/239,247.09 = 137,464.50/x
  3. Step 3: Cross multiply
    173,418.78x = 239,247.09 × 137,464.50
  4. Step 4: Simplify right side
    173,418.78x = 32,887,981,603.31
  5. Step 5: Solve for x
    x = 32,887,981,603.31/173,418.78
  6. Step 6: Final answer
    x = 189,644.87

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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.