Home / 102,786.12-154,196.76-35,314.92

Finding the Fourth Proportional to 102,786.12, 154,196.76 and 35,314.92

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Solution

The fourth proportional to 102,786.12, 154,196.76 and 35,314.92 is: 52,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,786.12 : 154,196.76 = 35,314.92 : x
  2. Step 2: Convert to fraction form
    102,786.12/154,196.76 = 35,314.92/x
  3. Step 3: Cross multiply
    102,786.12x = 154,196.76 × 35,314.92
  4. Step 4: Simplify right side
    102,786.12x = 5,445,446,243.66
  5. Step 5: Solve for x
    x = 5,445,446,243.66/102,786.12
  6. Step 6: Final answer
    x = 52,978.42

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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.