Home / 185,143.15-255,498.33-100,260.28

Finding the Fourth Proportional to 185,143.15, 255,498.33 and 100,260.28

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Solution

The fourth proportional to 185,143.15, 255,498.33 and 100,260.28 is: 138,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,143.15 : 255,498.33 = 100,260.28 : x
  2. Step 2: Convert to fraction form
    185,143.15/255,498.33 = 100,260.28/x
  3. Step 3: Cross multiply
    185,143.15x = 255,498.33 × 100,260.28
  4. Step 4: Simplify right side
    185,143.15x = 25,616,334,105.33
  5. Step 5: Solve for x
    x = 25,616,334,105.33/185,143.15
  6. Step 6: Final answer
    x = 138,359.61

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1.5x scale

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.