Home / 185,020.48-255,328.25-100,137.54

Finding the Fourth Proportional to 185,020.48, 255,328.25 and 100,137.54

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Solution

The fourth proportional to 185,020.48, 255,328.25 and 100,137.54 is: 138,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,020.48 : 255,328.25 = 100,137.54 : x
  2. Step 2: Convert to fraction form
    185,020.48/255,328.25 = 100,137.54/x
  3. Step 3: Cross multiply
    185,020.48x = 255,328.25 × 100,137.54
  4. Step 4: Simplify right side
    185,020.48x = 25,567,942,847.51
  5. Step 5: Solve for x
    x = 25,567,942,847.51/185,020.48
  6. Step 6: Final answer
    x = 138,189.80

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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.