Home / 139,300.26-192,316.40-84,872.96

Finding the Fourth Proportional to 139,300.26, 192,316.40 and 84,872.96

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Solution

The fourth proportional to 139,300.26, 192,316.40 and 84,872.96 is: 117,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,300.26 : 192,316.40 = 84,872.96 : x
  2. Step 2: Convert to fraction form
    139,300.26/192,316.40 = 84,872.96/x
  3. Step 3: Cross multiply
    139,300.26x = 192,316.40 × 84,872.96
  4. Step 4: Simplify right side
    139,300.26x = 16,322,462,124.54
  5. Step 5: Solve for x
    x = 16,322,462,124.54/139,300.26
  6. Step 6: Final answer
    x = 117,174.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.