Home / 100,444.73-150,667.09-78,274.69

Finding the Fourth Proportional to 100,444.73, 150,667.09 and 78,274.69

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Solution

The fourth proportional to 100,444.73, 150,667.09 and 78,274.69 is: 117,412.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,444.73 : 150,667.09 = 78,274.69 : x
  2. Step 2: Convert to fraction form
    100,444.73/150,667.09 = 78,274.69/x
  3. Step 3: Cross multiply
    100,444.73x = 150,667.09 × 78,274.69
  4. Step 4: Simplify right side
    100,444.73x = 11,793,419,190.60
  5. Step 5: Solve for x
    x = 11,793,419,190.60/100,444.73
  6. Step 6: Final answer
    x = 117,412.03

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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.