Home / 139,865.68-209,816.84-51,160.96

Finding the Fourth Proportional to 139,865.68, 209,816.84 and 51,160.96

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Solution

The fourth proportional to 139,865.68, 209,816.84 and 51,160.96 is: 76,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,865.68 : 209,816.84 = 51,160.96 : x
  2. Step 2: Convert to fraction form
    139,865.68/209,816.84 = 51,160.96/x
  3. Step 3: Cross multiply
    139,865.68x = 209,816.84 × 51,160.96
  4. Step 4: Simplify right side
    139,865.68x = 10,734,430,958.57
  5. Step 5: Solve for x
    x = 10,734,430,958.57/139,865.68
  6. Step 6: Final answer
    x = 76,748.14

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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.