Home / 189,809.43-284,706.62-105,516.30

Finding the Fourth Proportional to 189,809.43, 284,706.62 and 105,516.30

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Solution

The fourth proportional to 189,809.43, 284,706.62 and 105,516.30 is: 158,270.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,809.43 : 284,706.62 = 105,516.30 : x
  2. Step 2: Convert to fraction form
    189,809.43/284,706.62 = 105,516.30/x
  3. Step 3: Cross multiply
    189,809.43x = 284,706.62 × 105,516.30
  4. Step 4: Simplify right side
    189,809.43x = 30,041,187,958.21
  5. Step 5: Solve for x
    x = 30,041,187,958.21/189,809.43
  6. Step 6: Final answer
    x = 158,270.26

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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.