Home / 102,786.12-154,196.79-35,314.95

Finding the Fourth Proportional to 102,786.12, 154,196.79 and 35,314.95

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Solution

The fourth proportional to 102,786.12, 154,196.79 and 35,314.95 is: 52,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.12 : 154,196.79 = 35,314.95 : x
  2. Step 2: Convert to fraction form
    102,786.12/154,196.79 = 35,314.95/x
  3. Step 3: Cross multiply
    102,786.12x = 154,196.79 × 35,314.95
  4. Step 4: Simplify right side
    102,786.12x = 5,445,451,929.01
  5. Step 5: Solve for x
    x = 5,445,451,929.01/102,786.12
  6. Step 6: Final answer
    x = 52,978.48

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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.