Home / 103,820.62-143,274.69-57,883.09

Finding the Fourth Proportional to 103,820.62, 143,274.69 and 57,883.09

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Solution

The fourth proportional to 103,820.62, 143,274.69 and 57,883.09 is: 79,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,820.62 : 143,274.69 = 57,883.09 : x
  2. Step 2: Convert to fraction form
    103,820.62/143,274.69 = 57,883.09/x
  3. Step 3: Cross multiply
    103,820.62x = 143,274.69 × 57,883.09
  4. Step 4: Simplify right side
    103,820.62x = 8,293,181,775.99
  5. Step 5: Solve for x
    x = 8,293,181,775.99/103,820.62
  6. Step 6: Final answer
    x = 79,879.91

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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.