Home / 103,623.49-143,005.67-61,181.11

Finding the Fourth Proportional to 103,623.49, 143,005.67 and 61,181.11

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Solution

The fourth proportional to 103,623.49, 143,005.67 and 61,181.11 is: 84,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.49 : 143,005.67 = 61,181.11 : x
  2. Step 2: Convert to fraction form
    103,623.49/143,005.67 = 61,181.11/x
  3. Step 3: Cross multiply
    103,623.49x = 143,005.67 × 61,181.11
  4. Step 4: Simplify right side
    103,623.49x = 8,749,245,320.99
  5. Step 5: Solve for x
    x = 8,749,245,320.99/103,623.49
  6. Step 6: Final answer
    x = 84,433.03

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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.