Home / 185,115.78-255,459.96-100,232.64

Finding the Fourth Proportional to 185,115.78, 255,459.96 and 100,232.64

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Solution

The fourth proportional to 185,115.78, 255,459.96 and 100,232.64 is: 138,321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,115.78 : 255,459.96 = 100,232.64 : x
  2. Step 2: Convert to fraction form
    185,115.78/255,459.96 = 100,232.64/x
  3. Step 3: Cross multiply
    185,115.78x = 255,459.96 × 100,232.64
  4. Step 4: Simplify right side
    185,115.78x = 25,605,426,205.09
  5. Step 5: Solve for x
    x = 25,605,426,205.09/185,115.78
  6. Step 6: Final answer
    x = 138,321.14

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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.