Home / 117,311.49-161,290.44-104,442.21

Finding the Fourth Proportional to 117,311.49, 161,290.44 and 104,442.21

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Solution

The fourth proportional to 117,311.49, 161,290.44 and 104,442.21 is: 143,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,311.49 : 161,290.44 = 104,442.21 : x
  2. Step 2: Convert to fraction form
    117,311.49/161,290.44 = 104,442.21/x
  3. Step 3: Cross multiply
    117,311.49x = 161,290.44 × 104,442.21
  4. Step 4: Simplify right side
    117,311.49x = 16,845,530,005.47
  5. Step 5: Solve for x
    x = 16,845,530,005.47/117,311.49
  6. Step 6: Final answer
    x = 143,596.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.