Home / 188,288.41-259,837.68-103,405.47

Finding the Fourth Proportional to 188,288.41, 259,837.68 and 103,405.47

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Solution

The fourth proportional to 188,288.41, 259,837.68 and 103,405.47 is: 142,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,288.41 : 259,837.68 = 103,405.47 : x
  2. Step 2: Convert to fraction form
    188,288.41/259,837.68 = 103,405.47/x
  3. Step 3: Cross multiply
    188,288.41x = 259,837.68 × 103,405.47
  4. Step 4: Simplify right side
    188,288.41x = 26,868,637,424.11
  5. Step 5: Solve for x
    x = 26,868,637,424.11/188,288.41
  6. Step 6: Final answer
    x = 142,699.37

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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.