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Finding the Fourth Proportional to 184,889.80, 255,147.60 and 100,007.20

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Solution

The fourth proportional to 184,889.80, 255,147.60 and 100,007.20 is: 138,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,889.80 : 255,147.60 = 100,007.20 : x
  2. Step 2: Convert to fraction form
    184,889.80/255,147.60 = 100,007.20/x
  3. Step 3: Cross multiply
    184,889.80x = 255,147.60 × 100,007.20
  4. Step 4: Simplify right side
    184,889.80x = 25,516,597,062.72
  5. Step 5: Solve for x
    x = 25,516,597,062.72/184,889.80
  6. Step 6: Final answer
    x = 138,009.76

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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.