Home / 189,869.27-262,012.52-104,987.75

Finding the Fourth Proportional to 189,869.27, 262,012.52 and 104,987.75

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Solution

The fourth proportional to 189,869.27, 262,012.52 and 104,987.75 is: 144,879.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,869.27 : 262,012.52 = 104,987.75 : x
  2. Step 2: Convert to fraction form
    189,869.27/262,012.52 = 104,987.75/x
  3. Step 3: Cross multiply
    189,869.27x = 262,012.52 × 104,987.75
  4. Step 4: Simplify right side
    189,869.27x = 27,508,103,899.04
  5. Step 5: Solve for x
    x = 27,508,103,899.04/189,869.27
  6. Step 6: Final answer
    x = 144,879.18

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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.