Home / 188,039.16-259,498.26-103,155.84

Finding the Fourth Proportional to 188,039.16, 259,498.26 and 103,155.84

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Solution

The fourth proportional to 188,039.16, 259,498.26 and 103,155.84 is: 142,357.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,039.16 : 259,498.26 = 103,155.84 : x
  2. Step 2: Convert to fraction form
    188,039.16/259,498.26 = 103,155.84/x
  3. Step 3: Cross multiply
    188,039.16x = 259,498.26 × 103,155.84
  4. Step 4: Simplify right side
    188,039.16x = 26,768,760,988.84
  5. Step 5: Solve for x
    x = 26,768,760,988.84/188,039.16
  6. Step 6: Final answer
    x = 142,357.37

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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.