Home / 248,078.17-342,339.78-139,175.92

Finding the Fourth Proportional to 248,078.17, 342,339.78 and 139,175.92

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Solution

The fourth proportional to 248,078.17, 342,339.78 and 139,175.92 is: 192,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,078.17 : 342,339.78 = 139,175.92 : x
  2. Step 2: Convert to fraction form
    248,078.17/342,339.78 = 139,175.92/x
  3. Step 3: Cross multiply
    248,078.17x = 342,339.78 × 139,175.92
  4. Step 4: Simplify right side
    248,078.17x = 47,645,453,834.10
  5. Step 5: Solve for x
    x = 47,645,453,834.10/248,078.17
  6. Step 6: Final answer
    x = 192,058.23

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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.