Home / 189,486.27-261,484.20-104,601.51

Finding the Fourth Proportional to 189,486.27, 261,484.20 and 104,601.51

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Solution

The fourth proportional to 189,486.27, 261,484.20 and 104,601.51 is: 144,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,486.27 : 261,484.20 = 104,601.51 : x
  2. Step 2: Convert to fraction form
    189,486.27/261,484.20 = 104,601.51/x
  3. Step 3: Cross multiply
    189,486.27x = 261,484.20 × 104,601.51
  4. Step 4: Simplify right side
    189,486.27x = 27,351,642,161.14
  5. Step 5: Solve for x
    x = 27,351,642,161.14/189,486.27
  6. Step 6: Final answer
    x = 144,346.30

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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.