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Finding the Fourth Proportional to 146,710.20, 220,211.10 and 71,914.80

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Solution

The fourth proportional to 146,710.20, 220,211.10 and 71,914.80 is: 107,943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,710.20 : 220,211.10 = 71,914.80 : x
  2. Step 2: Convert to fraction form
    146,710.20/220,211.10 = 71,914.80/x
  3. Step 3: Cross multiply
    146,710.20x = 220,211.10 × 71,914.80
  4. Step 4: Simplify right side
    146,710.20x = 15,836,437,214.28
  5. Step 5: Solve for x
    x = 15,836,437,214.28/146,710.20
  6. Step 6: Final answer
    x = 107,943.67

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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.