Home / 185,142.96-255,496.92-100,259.76

Finding the Fourth Proportional to 185,142.96, 255,496.92 and 100,259.76

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Solution

The fourth proportional to 185,142.96, 255,496.92 and 100,259.76 is: 138,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,142.96 : 255,496.92 = 100,259.76 : x
  2. Step 2: Convert to fraction form
    185,142.96/255,496.92 = 100,259.76/x
  3. Step 3: Cross multiply
    185,142.96x = 255,496.92 × 100,259.76
  4. Step 4: Simplify right side
    185,142.96x = 25,616,059,879.94
  5. Step 5: Solve for x
    x = 25,616,059,879.94/185,142.96
  6. Step 6: Final answer
    x = 138,358.27

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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.