Home / 189,504.12-284,151.72-77,155.56

Finding the Fourth Proportional to 189,504.12, 284,151.72 and 77,155.56

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Solution

The fourth proportional to 189,504.12, 284,151.72 and 77,155.56 is: 115,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,504.12 : 284,151.72 = 77,155.56 : x
  2. Step 2: Convert to fraction form
    189,504.12/284,151.72 = 77,155.56/x
  3. Step 3: Cross multiply
    189,504.12x = 284,151.72 × 77,155.56
  4. Step 4: Simplify right side
    189,504.12x = 21,923,885,081.56
  5. Step 5: Solve for x
    x = 21,923,885,081.56/189,504.12
  6. Step 6: Final answer
    x = 115,690.81

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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.