Home / 189,749.12-284,033.19-119,480.81

Finding the Fourth Proportional to 189,749.12, 284,033.19 and 119,480.81

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Solution

The fourth proportional to 189,749.12, 284,033.19 and 119,480.81 is: 178,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,749.12 : 284,033.19 = 119,480.81 : x
  2. Step 2: Convert to fraction form
    189,749.12/284,033.19 = 119,480.81/x
  3. Step 3: Cross multiply
    189,749.12x = 284,033.19 × 119,480.81
  4. Step 4: Simplify right side
    189,749.12x = 33,936,515,608.08
  5. Step 5: Solve for x
    x = 33,936,515,608.08/189,749.12
  6. Step 6: Final answer
    x = 178,849.40

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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.