Home / 189,945.23-284,812.61-77,704.22

Finding the Fourth Proportional to 189,945.23, 284,812.61 and 77,704.22

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Solution

The fourth proportional to 189,945.23, 284,812.61 and 77,704.22 is: 116,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,945.23 : 284,812.61 = 77,704.22 : x
  2. Step 2: Convert to fraction form
    189,945.23/284,812.61 = 77,704.22/x
  3. Step 3: Cross multiply
    189,945.23x = 284,812.61 × 77,704.22
  4. Step 4: Simplify right side
    189,945.23x = 22,131,139,893.63
  5. Step 5: Solve for x
    x = 22,131,139,893.63/189,945.23
  6. Step 6: Final answer
    x = 116,513.27

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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.