Home / 189,391.23-284,013.09-70,998.03

Finding the Fourth Proportional to 189,391.23, 284,013.09 and 70,998.03

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Solution

The fourth proportional to 189,391.23, 284,013.09 and 70,998.03 is: 106,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,391.23 : 284,013.09 = 70,998.03 : x
  2. Step 2: Convert to fraction form
    189,391.23/284,013.09 = 70,998.03/x
  3. Step 3: Cross multiply
    189,391.23x = 284,013.09 × 70,998.03
  4. Step 4: Simplify right side
    189,391.23x = 20,164,369,884.21
  5. Step 5: Solve for x
    x = 20,164,369,884.21/189,391.23
  6. Step 6: Final answer
    x = 106,469.40

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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.