Home / 189,225.64-261,112.26-104,340.52

Finding the Fourth Proportional to 189,225.64, 261,112.26 and 104,340.52

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Solution

The fourth proportional to 189,225.64, 261,112.26 and 104,340.52 is: 143,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.64 : 261,112.26 = 104,340.52 : x
  2. Step 2: Convert to fraction form
    189,225.64/261,112.26 = 104,340.52/x
  3. Step 3: Cross multiply
    189,225.64x = 261,112.26 × 104,340.52
  4. Step 4: Simplify right side
    189,225.64x = 27,244,588,986.78
  5. Step 5: Solve for x
    x = 27,244,588,986.78/189,225.64
  6. Step 6: Final answer
    x = 143,979.37

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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.