Home / 102,874.94-154,172.29-57,917.76

Finding the Fourth Proportional to 102,874.94, 154,172.29 and 57,917.76

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Solution

The fourth proportional to 102,874.94, 154,172.29 and 57,917.76 is: 86,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,874.94 : 154,172.29 = 57,917.76 : x
  2. Step 2: Convert to fraction form
    102,874.94/154,172.29 = 57,917.76/x
  3. Step 3: Cross multiply
    102,874.94x = 154,172.29 × 57,917.76
  4. Step 4: Simplify right side
    102,874.94x = 8,929,313,690.87
  5. Step 5: Solve for x
    x = 8,929,313,690.87/102,874.94
  6. Step 6: Final answer
    x = 86,797.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.