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Finding the Fourth Proportional to 130,396.99, 195,595.48 and 71,200.36

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Solution

The fourth proportional to 130,396.99, 195,595.48 and 71,200.36 is: 106,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,396.99 : 195,595.48 = 71,200.36 : x
  2. Step 2: Convert to fraction form
    130,396.99/195,595.48 = 71,200.36/x
  3. Step 3: Cross multiply
    130,396.99x = 195,595.48 × 71,200.36
  4. Step 4: Simplify right side
    130,396.99x = 13,926,469,290.61
  5. Step 5: Solve for x
    x = 13,926,469,290.61/130,396.99
  6. Step 6: Final answer
    x = 106,800.55

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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.