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Finding the Fourth Proportional to 189,725.49, 261,798.89 and 104,837.49

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Solution

The fourth proportional to 189,725.49, 261,798.89 and 104,837.49 is: 144,663.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,725.49 : 261,798.89 = 104,837.49 : x
  2. Step 2: Convert to fraction form
    189,725.49/261,798.89 = 104,837.49/x
  3. Step 3: Cross multiply
    189,725.49x = 261,798.89 × 104,837.49
  4. Step 4: Simplify right side
    189,725.49x = 27,446,337,988.20
  5. Step 5: Solve for x
    x = 27,446,337,988.20/189,725.49
  6. Step 6: Final answer
    x = 144,663.42

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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.