Home / 156,542.51-215,945.93-111,238.81

Finding the Fourth Proportional to 156,542.51, 215,945.93 and 111,238.81

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Solution

The fourth proportional to 156,542.51, 215,945.93 and 111,238.81 is: 153,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,542.51 : 215,945.93 = 111,238.81 : x
  2. Step 2: Convert to fraction form
    156,542.51/215,945.93 = 111,238.81/x
  3. Step 3: Cross multiply
    156,542.51x = 215,945.93 × 111,238.81
  4. Step 4: Simplify right side
    156,542.51x = 24,021,568,015.78
  5. Step 5: Solve for x
    x = 24,021,568,015.78/156,542.51
  6. Step 6: Final answer
    x = 153,450.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.