Home / 189,455.28-261,448.31-104,572.37

Finding the Fourth Proportional to 189,455.28, 261,448.31 and 104,572.37

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Solution

The fourth proportional to 189,455.28, 261,448.31 and 104,572.37 is: 144,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,455.28 : 261,448.31 = 104,572.37 : x
  2. Step 2: Convert to fraction form
    189,455.28/261,448.31 = 104,572.37/x
  3. Step 3: Cross multiply
    189,455.28x = 261,448.31 × 104,572.37
  4. Step 4: Simplify right side
    189,455.28x = 27,340,268,559.48
  5. Step 5: Solve for x
    x = 27,340,268,559.48/189,455.28
  6. Step 6: Final answer
    x = 144,309.88

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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.