Home / 102,857.19-154,285.79-43,651.35

Finding the Fourth Proportional to 102,857.19, 154,285.79 and 43,651.35

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Solution

The fourth proportional to 102,857.19, 154,285.79 and 43,651.35 is: 65,477.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,857.19 : 154,285.79 = 43,651.35 : x
  2. Step 2: Convert to fraction form
    102,857.19/154,285.79 = 43,651.35/x
  3. Step 3: Cross multiply
    102,857.19x = 154,285.79 × 43,651.35
  4. Step 4: Simplify right side
    102,857.19x = 6,734,783,019.32
  5. Step 5: Solve for x
    x = 6,734,783,019.32/102,857.19
  6. Step 6: Final answer
    x = 65,477.03

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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.