Home / 188,299.27-259,865.72-103,417.21

Finding the Fourth Proportional to 188,299.27, 259,865.72 and 103,417.21

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Solution

The fourth proportional to 188,299.27, 259,865.72 and 103,417.21 is: 142,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,299.27 : 259,865.72 = 103,417.21 : x
  2. Step 2: Convert to fraction form
    188,299.27/259,865.72 = 103,417.21/x
  3. Step 3: Cross multiply
    188,299.27x = 259,865.72 × 103,417.21
  4. Step 4: Simplify right side
    188,299.27x = 26,874,587,219.96
  5. Step 5: Solve for x
    x = 26,874,587,219.96/188,299.27
  6. Step 6: Final answer
    x = 142,722.74

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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.