Home / 189,410.43-261,378.17-103,367.24

Finding the Fourth Proportional to 189,410.43, 261,378.17 and 103,367.24

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Solution

The fourth proportional to 189,410.43, 261,378.17 and 103,367.24 is: 142,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,410.43 : 261,378.17 = 103,367.24 : x
  2. Step 2: Convert to fraction form
    189,410.43/261,378.17 = 103,367.24/x
  3. Step 3: Cross multiply
    189,410.43x = 261,378.17 × 103,367.24
  4. Step 4: Simplify right side
    189,410.43x = 27,017,940,154.66
  5. Step 5: Solve for x
    x = 27,017,940,154.66/189,410.43
  6. Step 6: Final answer
    x = 142,642.30

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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.