Home / 103,755.66-143,186.63-57,819.43

Finding the Fourth Proportional to 103,755.66, 143,186.63 and 57,819.43

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Solution

The fourth proportional to 103,755.66, 143,186.63 and 57,819.43 is: 79,792.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,755.66 : 143,186.63 = 57,819.43 : x
  2. Step 2: Convert to fraction form
    103,755.66/143,186.63 = 57,819.43/x
  3. Step 3: Cross multiply
    103,755.66x = 143,186.63 × 57,819.43
  4. Step 4: Simplify right side
    103,755.66x = 8,278,969,330.22
  5. Step 5: Solve for x
    x = 8,278,969,330.22/103,755.66
  6. Step 6: Final answer
    x = 79,792.94

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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.