Home / 185,091.68-255,427.02-100,208.54

Finding the Fourth Proportional to 185,091.68, 255,427.02 and 100,208.54

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Solution

The fourth proportional to 185,091.68, 255,427.02 and 100,208.54 is: 138,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,091.68 : 255,427.02 = 100,208.54 : x
  2. Step 2: Convert to fraction form
    185,091.68/255,427.02 = 100,208.54/x
  3. Step 3: Cross multiply
    185,091.68x = 255,427.02 × 100,208.54
  4. Step 4: Simplify right side
    185,091.68x = 25,595,968,750.75
  5. Step 5: Solve for x
    x = 25,595,968,750.75/185,091.68
  6. Step 6: Final answer
    x = 138,288.06

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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.