Home / 189,837.26-261,980.88-104,959.78

Finding the Fourth Proportional to 189,837.26, 261,980.88 and 104,959.78

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Solution

The fourth proportional to 189,837.26, 261,980.88 and 104,959.78 is: 144,847.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,837.26 : 261,980.88 = 104,959.78 : x
  2. Step 2: Convert to fraction form
    189,837.26/261,980.88 = 104,959.78/x
  3. Step 3: Cross multiply
    189,837.26x = 261,980.88 × 104,959.78
  4. Step 4: Simplify right side
    189,837.26x = 27,497,455,529.01
  5. Step 5: Solve for x
    x = 27,497,455,529.01/189,837.26
  6. Step 6: Final answer
    x = 144,847.52

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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.