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Finding the Fourth Proportional to 189,329.84, 261,270.96 and 104,446.88

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Solution

The fourth proportional to 189,329.84, 261,270.96 and 104,446.88 is: 144,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,329.84 : 261,270.96 = 104,446.88 : x
  2. Step 2: Convert to fraction form
    189,329.84/261,270.96 = 104,446.88/x
  3. Step 3: Cross multiply
    189,329.84x = 261,270.96 × 104,446.88
  4. Step 4: Simplify right side
    189,329.84x = 27,288,936,606.60
  5. Step 5: Solve for x
    x = 27,288,936,606.60/189,329.84
  6. Step 6: Final answer
    x = 144,134.37

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1.5x scale

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.