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Finding the Fourth Proportional to 130,773.76, 196,189.80 and 47,667.76

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Solution

The fourth proportional to 130,773.76, 196,189.80 and 47,667.76 is: 71,512.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,773.76 : 196,189.80 = 47,667.76 : x
  2. Step 2: Convert to fraction form
    130,773.76/196,189.80 = 47,667.76/x
  3. Step 3: Cross multiply
    130,773.76x = 196,189.80 × 47,667.76
  4. Step 4: Simplify right side
    130,773.76x = 9,351,928,300.85
  5. Step 5: Solve for x
    x = 9,351,928,300.85/130,773.76
  6. Step 6: Final answer
    x = 71,512.27

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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.