Home / 189,935.74-284,945.73-71,608.11

Finding the Fourth Proportional to 189,935.74, 284,945.73 and 71,608.11

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Solution

The fourth proportional to 189,935.74, 284,945.73 and 71,608.11 is: 107,428.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,935.74 : 284,945.73 = 71,608.11 : x
  2. Step 2: Convert to fraction form
    189,935.74/284,945.73 = 71,608.11/x
  3. Step 3: Cross multiply
    189,935.74x = 284,945.73 × 71,608.11
  4. Step 4: Simplify right side
    189,935.74x = 20,404,425,177.87
  5. Step 5: Solve for x
    x = 20,404,425,177.87/189,935.74
  6. Step 6: Final answer
    x = 107,428.04

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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.