Home / 102,855.87-141,954.21-57,536.37

Finding the Fourth Proportional to 102,855.87, 141,954.21 and 57,536.37

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Solution

The fourth proportional to 102,855.87, 141,954.21 and 57,536.37 is: 79,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,855.87 : 141,954.21 = 57,536.37 : x
  2. Step 2: Convert to fraction form
    102,855.87/141,954.21 = 57,536.37/x
  3. Step 3: Cross multiply
    102,855.87x = 141,954.21 × 57,536.37
  4. Step 4: Simplify right side
    102,855.87x = 8,167,529,949.62
  5. Step 5: Solve for x
    x = 8,167,529,949.62/102,855.87
  6. Step 6: Final answer
    x = 79,407.52

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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.