Home / 248,018.62-342,264.26-137,636.15

Finding the Fourth Proportional to 248,018.62, 342,264.26 and 137,636.15

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Solution

The fourth proportional to 248,018.62, 342,264.26 and 137,636.15 is: 189,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,018.62 : 342,264.26 = 137,636.15 : x
  2. Step 2: Convert to fraction form
    248,018.62/342,264.26 = 137,636.15/x
  3. Step 3: Cross multiply
    248,018.62x = 342,264.26 × 137,636.15
  4. Step 4: Simplify right side
    248,018.62x = 47,107,935,029.00
  5. Step 5: Solve for x
    x = 47,107,935,029.00/248,018.62
  6. Step 6: Final answer
    x = 189,937.09

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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.