Home / 188,869.32-260,638.74-103,986.36

Finding the Fourth Proportional to 188,869.32, 260,638.74 and 103,986.36

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Solution

The fourth proportional to 188,869.32, 260,638.74 and 103,986.36 is: 143,500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,869.32 : 260,638.74 = 103,986.36 : x
  2. Step 2: Convert to fraction form
    188,869.32/260,638.74 = 103,986.36/x
  3. Step 3: Cross multiply
    188,869.32x = 260,638.74 × 103,986.36
  4. Step 4: Simplify right side
    188,869.32x = 27,102,873,847.59
  5. Step 5: Solve for x
    x = 27,102,873,847.59/188,869.32
  6. Step 6: Final answer
    x = 143,500.67

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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.