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Finding the Fourth Proportional to 100,191.63, 150,342.75 and 55,843.35

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Solution

The fourth proportional to 100,191.63, 150,342.75 and 55,843.35 is: 83,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,191.63 : 150,342.75 = 55,843.35 : x
  2. Step 2: Convert to fraction form
    100,191.63/150,342.75 = 55,843.35/x
  3. Step 3: Cross multiply
    100,191.63x = 150,342.75 × 55,843.35
  4. Step 4: Simplify right side
    100,191.63x = 8,395,642,808.21
  5. Step 5: Solve for x
    x = 8,395,642,808.21/100,191.63
  6. Step 6: Final answer
    x = 83,795.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.