Home / 248,078.30-342,339.89-139,176.02

Finding the Fourth Proportional to 248,078.30, 342,339.89 and 139,176.02

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Solution

The fourth proportional to 248,078.30, 342,339.89 and 139,176.02 is: 192,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,078.30 : 342,339.89 = 139,176.02 : x
  2. Step 2: Convert to fraction form
    248,078.30/342,339.89 = 139,176.02/x
  3. Step 3: Cross multiply
    248,078.30x = 342,339.89 × 139,176.02
  4. Step 4: Simplify right side
    248,078.30x = 47,645,503,537.41
  5. Step 5: Solve for x
    x = 47,645,503,537.41/248,078.30
  6. Step 6: Final answer
    x = 192,058.33

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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.