Home / 104,981.54-157,439.97-30,081.58

Finding the Fourth Proportional to 104,981.54, 157,439.97 and 30,081.58

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Solution

The fourth proportional to 104,981.54, 157,439.97 and 30,081.58 is: 45,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,981.54 : 157,439.97 = 30,081.58 : x
  2. Step 2: Convert to fraction form
    104,981.54/157,439.97 = 30,081.58/x
  3. Step 3: Cross multiply
    104,981.54x = 157,439.97 × 30,081.58
  4. Step 4: Simplify right side
    104,981.54x = 4,736,042,659.15
  5. Step 5: Solve for x
    x = 4,736,042,659.15/104,981.54
  6. Step 6: Final answer
    x = 45,113.10

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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.