Home / 104,209.05-143,815.68-63,389.10

Finding the Fourth Proportional to 104,209.05, 143,815.68 and 63,389.10

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Solution

The fourth proportional to 104,209.05, 143,815.68 and 63,389.10 is: 87,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,209.05 : 143,815.68 = 63,389.10 : x
  2. Step 2: Convert to fraction form
    104,209.05/143,815.68 = 63,389.10/x
  3. Step 3: Cross multiply
    104,209.05x = 143,815.68 × 63,389.10
  4. Step 4: Simplify right side
    104,209.05x = 9,116,346,521.09
  5. Step 5: Solve for x
    x = 9,116,346,521.09/104,209.05
  6. Step 6: Final answer
    x = 87,481.33

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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.