Home / 103,916.10-143,403.75-56,169.33

Finding the Fourth Proportional to 103,916.10, 143,403.75 and 56,169.33

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Solution

The fourth proportional to 103,916.10, 143,403.75 and 56,169.33 is: 77,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,916.10 : 143,403.75 = 56,169.33 : x
  2. Step 2: Convert to fraction form
    103,916.10/143,403.75 = 56,169.33/x
  3. Step 3: Cross multiply
    103,916.10x = 143,403.75 × 56,169.33
  4. Step 4: Simplify right side
    103,916.10x = 8,054,892,556.99
  5. Step 5: Solve for x
    x = 8,054,892,556.99/103,916.10
  6. Step 6: Final answer
    x = 77,513.42

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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.