Home / 189,749.76-261,844.64-104,861.76

Finding the Fourth Proportional to 189,749.76, 261,844.64 and 104,861.76

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Solution

The fourth proportional to 189,749.76, 261,844.64 and 104,861.76 is: 144,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,749.76 : 261,844.64 = 104,861.76 : x
  2. Step 2: Convert to fraction form
    189,749.76/261,844.64 = 104,861.76/x
  3. Step 3: Cross multiply
    189,749.76x = 261,844.64 × 104,861.76
  4. Step 4: Simplify right side
    189,749.76x = 27,457,489,796.97
  5. Step 5: Solve for x
    x = 27,457,489,796.97/189,749.76
  6. Step 6: Final answer
    x = 144,703.69

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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.