Home / 126,270.20-189,667.74-100,157.42

Finding the Fourth Proportional to 126,270.20, 189,667.74 and 100,157.42

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Solution

The fourth proportional to 126,270.20, 189,667.74 and 100,157.42 is: 150,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,270.20 : 189,667.74 = 100,157.42 : x
  2. Step 2: Convert to fraction form
    126,270.20/189,667.74 = 100,157.42/x
  3. Step 3: Cross multiply
    126,270.20x = 189,667.74 × 100,157.42
  4. Step 4: Simplify right side
    126,270.20x = 18,996,631,495.63
  5. Step 5: Solve for x
    x = 18,996,631,495.63/126,270.20
  6. Step 6: Final answer
    x = 150,444.30

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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.