Home / 185,310.27-255,721.32-100,425.51

Finding the Fourth Proportional to 185,310.27, 255,721.32 and 100,425.51

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Solution

The fourth proportional to 185,310.27, 255,721.32 and 100,425.51 is: 138,583.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,310.27 : 255,721.32 = 100,425.51 : x
  2. Step 2: Convert to fraction form
    185,310.27/255,721.32 = 100,425.51/x
  3. Step 3: Cross multiply
    185,310.27x = 255,721.32 × 100,425.51
  4. Step 4: Simplify right side
    185,310.27x = 25,680,943,978.87
  5. Step 5: Solve for x
    x = 25,680,943,978.87/185,310.27
  6. Step 6: Final answer
    x = 138,583.49

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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.