Home / 185,007.22-255,310.74-100,124.28

Finding the Fourth Proportional to 185,007.22, 255,310.74 and 100,124.28

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Solution

The fourth proportional to 185,007.22, 255,310.74 and 100,124.28 is: 138,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,007.22 : 255,310.74 = 100,124.28 : x
  2. Step 2: Convert to fraction form
    185,007.22/255,310.74 = 100,124.28/x
  3. Step 3: Cross multiply
    185,007.22x = 255,310.74 × 100,124.28
  4. Step 4: Simplify right side
    185,007.22x = 25,562,804,018.77
  5. Step 5: Solve for x
    x = 25,562,804,018.77/185,007.22
  6. Step 6: Final answer
    x = 138,171.93

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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.