Home / 168,578.09-232,642.33-100,634.50

Finding the Fourth Proportional to 168,578.09, 232,642.33 and 100,634.50

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Solution

The fourth proportional to 168,578.09, 232,642.33 and 100,634.50 is: 138,878.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,578.09 : 232,642.33 = 100,634.50 : x
  2. Step 2: Convert to fraction form
    168,578.09/232,642.33 = 100,634.50/x
  3. Step 3: Cross multiply
    168,578.09x = 232,642.33 × 100,634.50
  4. Step 4: Simplify right side
    168,578.09x = 23,411,844,558.39
  5. Step 5: Solve for x
    x = 23,411,844,558.39/168,578.09
  6. Step 6: Final answer
    x = 138,878.34

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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.