Home / 189,712.26-261,808.20-104,834.79

Finding the Fourth Proportional to 189,712.26, 261,808.20 and 104,834.79

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Solution

The fourth proportional to 189,712.26, 261,808.20 and 104,834.79 is: 144,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,712.26 : 261,808.20 = 104,834.79 : x
  2. Step 2: Convert to fraction form
    189,712.26/261,808.20 = 104,834.79/x
  3. Step 3: Cross multiply
    189,712.26x = 261,808.20 × 104,834.79
  4. Step 4: Simplify right side
    189,712.26x = 27,446,607,667.28
  5. Step 5: Solve for x
    x = 27,446,607,667.28/189,712.26
  6. Step 6: Final answer
    x = 144,674.93

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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.