Home / 189,938.89-284,703.31-123,426.75

Finding the Fourth Proportional to 189,938.89, 284,703.31 and 123,426.75

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Solution

The fourth proportional to 189,938.89, 284,703.31 and 123,426.75 is: 185,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,938.89 : 284,703.31 = 123,426.75 : x
  2. Step 2: Convert to fraction form
    189,938.89/284,703.31 = 123,426.75/x
  3. Step 3: Cross multiply
    189,938.89x = 284,703.31 × 123,426.75
  4. Step 4: Simplify right side
    189,938.89x = 35,140,004,795.19
  5. Step 5: Solve for x
    x = 35,140,004,795.19/189,938.89
  6. Step 6: Final answer
    x = 185,006.90

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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.