Home / 185,268.72-255,671.07-100,385.76

Finding the Fourth Proportional to 185,268.72, 255,671.07 and 100,385.76

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Solution

The fourth proportional to 185,268.72, 255,671.07 and 100,385.76 is: 138,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,268.72 : 255,671.07 = 100,385.76 : x
  2. Step 2: Convert to fraction form
    185,268.72/255,671.07 = 100,385.76/x
  3. Step 3: Cross multiply
    185,268.72x = 255,671.07 × 100,385.76
  4. Step 4: Simplify right side
    185,268.72x = 25,665,734,671.96
  5. Step 5: Solve for x
    x = 25,665,734,671.96/185,268.72
  6. Step 6: Final answer
    x = 138,532.48

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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.