Home / 117,232.49-161,691.57-100,907.48

Finding the Fourth Proportional to 117,232.49, 161,691.57 and 100,907.48

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Solution

The fourth proportional to 117,232.49, 161,691.57 and 100,907.48 is: 139,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,232.49 : 161,691.57 = 100,907.48 : x
  2. Step 2: Convert to fraction form
    117,232.49/161,691.57 = 100,907.48/x
  3. Step 3: Cross multiply
    117,232.49x = 161,691.57 × 100,907.48
  4. Step 4: Simplify right side
    117,232.49x = 16,315,888,865.94
  5. Step 5: Solve for x
    x = 16,315,888,865.94/117,232.49
  6. Step 6: Final answer
    x = 139,175.49

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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.