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Finding the Fourth Proportional to 184,989.78, 255,287.70 and 100,108.62

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Solution

The fourth proportional to 184,989.78, 255,287.70 and 100,108.62 is: 138,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,989.78 : 255,287.70 = 100,108.62 : x
  2. Step 2: Convert to fraction form
    184,989.78/255,287.70 = 100,108.62/x
  3. Step 3: Cross multiply
    184,989.78x = 255,287.70 × 100,108.62
  4. Step 4: Simplify right side
    184,989.78x = 25,556,499,349.97
  5. Step 5: Solve for x
    x = 25,556,499,349.97/184,989.78
  6. Step 6: Final answer
    x = 138,150.87

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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.