Home / 189,440.03-283,914-76,989.39

Finding the Fourth Proportional to 189,440.03, 283,914 and 76,989.39

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Solution

The fourth proportional to 189,440.03, 283,914 and 76,989.39 is: 115,384.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,440.03 : 283,914 = 76,989.39 : x
  2. Step 2: Convert to fraction form
    189,440.03/283,914 = 76,989.39/x
  3. Step 3: Cross multiply
    189,440.03x = 283,914 × 76,989.39
  4. Step 4: Simplify right side
    189,440.03x = 21,858,364,252.89
  5. Step 5: Solve for x
    x = 21,858,364,252.89/189,440.03
  6. Step 6: Final answer
    x = 115,384.09

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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.