Home / 185,090.68-255,425.64-100,207.54

Finding the Fourth Proportional to 185,090.68, 255,425.64 and 100,207.54

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Solution

The fourth proportional to 185,090.68, 255,425.64 and 100,207.54 is: 138,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,090.68 : 255,425.64 = 100,207.54 : x
  2. Step 2: Convert to fraction form
    185,090.68/255,425.64 = 100,207.54/x
  3. Step 3: Cross multiply
    185,090.68x = 255,425.64 × 100,207.54
  4. Step 4: Simplify right side
    185,090.68x = 25,595,575,037.33
  5. Step 5: Solve for x
    x = 25,595,575,037.33/185,090.68
  6. Step 6: Final answer
    x = 138,286.68

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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.