Home / 189,860.54-261,997.08-104,972

Finding the Fourth Proportional to 189,860.54, 261,997.08 and 104,972

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Solution

The fourth proportional to 189,860.54, 261,997.08 and 104,972 is: 144,855.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,860.54 : 261,997.08 = 104,972 : x
  2. Step 2: Convert to fraction form
    189,860.54/261,997.08 = 104,972/x
  3. Step 3: Cross multiply
    189,860.54x = 261,997.08 × 104,972
  4. Step 4: Simplify right side
    189,860.54x = 27,502,357,481.76
  5. Step 5: Solve for x
    x = 27,502,357,481.76/189,860.54
  6. Step 6: Final answer
    x = 144,855.57

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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.