Home / 189,983.21-262,174.86-103,941.38

Finding the Fourth Proportional to 189,983.21, 262,174.86 and 103,941.38

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Solution

The fourth proportional to 189,983.21, 262,174.86 and 103,941.38 is: 143,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,983.21 : 262,174.86 = 103,941.38 : x
  2. Step 2: Convert to fraction form
    189,983.21/262,174.86 = 103,941.38/x
  3. Step 3: Cross multiply
    189,983.21x = 262,174.86 × 103,941.38
  4. Step 4: Simplify right side
    189,983.21x = 27,250,816,749.71
  5. Step 5: Solve for x
    x = 27,250,816,749.71/189,983.21
  6. Step 6: Final answer
    x = 143,438.03

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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.