Home / 188,288.46-259,837.78-103,405.52

Finding the Fourth Proportional to 188,288.46, 259,837.78 and 103,405.52

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Solution

The fourth proportional to 188,288.46, 259,837.78 and 103,405.52 is: 142,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,288.46 : 259,837.78 = 103,405.52 : x
  2. Step 2: Convert to fraction form
    188,288.46/259,837.78 = 103,405.52/x
  3. Step 3: Cross multiply
    188,288.46x = 259,837.78 × 103,405.52
  4. Step 4: Simplify right side
    188,288.46x = 26,868,660,756.55
  5. Step 5: Solve for x
    x = 26,868,660,756.55/188,288.46
  6. Step 6: Final answer
    x = 142,699.46

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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.