Home / 189,740.43-261,839.39-104,855.67

Finding the Fourth Proportional to 189,740.43, 261,839.39 and 104,855.67

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Solution

The fourth proportional to 189,740.43, 261,839.39 and 104,855.67 is: 144,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,740.43 : 261,839.39 = 104,855.67 : x
  2. Step 2: Convert to fraction form
    189,740.43/261,839.39 = 104,855.67/x
  3. Step 3: Cross multiply
    189,740.43x = 261,839.39 × 104,855.67
  4. Step 4: Simplify right side
    189,740.43x = 27,455,344,146.56
  5. Step 5: Solve for x
    x = 27,455,344,146.56/189,740.43
  6. Step 6: Final answer
    x = 144,699.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.