Home / 248,542.55-342,967.69-139,638.38

Finding the Fourth Proportional to 248,542.55, 342,967.69 and 139,638.38

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Solution

The fourth proportional to 248,542.55, 342,967.69 and 139,638.38 is: 192,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,542.55 : 342,967.69 = 139,638.38 : x
  2. Step 2: Convert to fraction form
    248,542.55/342,967.69 = 139,638.38/x
  3. Step 3: Cross multiply
    248,542.55x = 342,967.69 × 139,638.38
  4. Step 4: Simplify right side
    248,542.55x = 47,891,451,068.33
  5. Step 5: Solve for x
    x = 47,891,451,068.33/248,542.55
  6. Step 6: Final answer
    x = 192,689.15

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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.