Home / 185,268.96-255,672.05-100,386

Finding the Fourth Proportional to 185,268.96, 255,672.05 and 100,386

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Solution

The fourth proportional to 185,268.96, 255,672.05 and 100,386 is: 138,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,268.96 : 255,672.05 = 100,386 : x
  2. Step 2: Convert to fraction form
    185,268.96/255,672.05 = 100,386/x
  3. Step 3: Cross multiply
    185,268.96x = 255,672.05 × 100,386
  4. Step 4: Simplify right side
    185,268.96x = 25,665,893,909.37
  5. Step 5: Solve for x
    x = 25,665,893,909.37/185,268.96
  6. Step 6: Final answer
    x = 138,533.16

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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.