Home / 106,466.40-159,367.37-78,418.13

Finding the Fourth Proportional to 106,466.40, 159,367.37 and 78,418.13

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Solution

The fourth proportional to 106,466.40, 159,367.37 and 78,418.13 is: 117,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,466.40 : 159,367.37 = 78,418.13 : x
  2. Step 2: Convert to fraction form
    106,466.40/159,367.37 = 78,418.13/x
  3. Step 3: Cross multiply
    106,466.40x = 159,367.37 × 78,418.13
  4. Step 4: Simplify right side
    106,466.40x = 12,497,289,949.49
  5. Step 5: Solve for x
    x = 12,497,289,949.49/106,466.40
  6. Step 6: Final answer
    x = 117,382.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.