Home / 104,395.08-143,828.76-99,418.44

Finding the Fourth Proportional to 104,395.08, 143,828.76 and 99,418.44

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Solution

The fourth proportional to 104,395.08, 143,828.76 and 99,418.44 is: 136,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,395.08 : 143,828.76 = 99,418.44 : x
  2. Step 2: Convert to fraction form
    104,395.08/143,828.76 = 99,418.44/x
  3. Step 3: Cross multiply
    104,395.08x = 143,828.76 × 99,418.44
  4. Step 4: Simplify right side
    104,395.08x = 14,299,230,946.33
  5. Step 5: Solve for x
    x = 14,299,230,946.33/104,395.08
  6. Step 6: Final answer
    x = 136,972.27

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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.