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Finding the Fourth Proportional to 184,955.76, 255,238.56 and 100,072.80

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Solution

The fourth proportional to 184,955.76, 255,238.56 and 100,072.80 is: 138,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,955.76 : 255,238.56 = 100,072.80 : x
  2. Step 2: Convert to fraction form
    184,955.76/255,238.56 = 100,072.80/x
  3. Step 3: Cross multiply
    184,955.76x = 255,238.56 × 100,072.80
  4. Step 4: Simplify right side
    184,955.76x = 25,542,437,367.17
  5. Step 5: Solve for x
    x = 25,542,437,367.17/184,955.76
  6. Step 6: Final answer
    x = 138,100.25

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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.