Home / 185,015.83-255,322.60-100,132.87

Finding the Fourth Proportional to 185,015.83, 255,322.60 and 100,132.87

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Solution

The fourth proportional to 185,015.83, 255,322.60 and 100,132.87 is: 138,183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,015.83 : 255,322.60 = 100,132.87 : x
  2. Step 2: Convert to fraction form
    185,015.83/255,322.60 = 100,132.87/x
  3. Step 3: Cross multiply
    185,015.83x = 255,322.60 × 100,132.87
  4. Step 4: Simplify right side
    185,015.83x = 25,566,184,713.86
  5. Step 5: Solve for x
    x = 25,566,184,713.86/185,015.83
  6. Step 6: Final answer
    x = 138,183.77

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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.