Home / 189,876.87-262,029.65-109,275.03

Finding the Fourth Proportional to 189,876.87, 262,029.65 and 109,275.03

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Solution

The fourth proportional to 189,876.87, 262,029.65 and 109,275.03 is: 150,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,876.87 : 262,029.65 = 109,275.03 : x
  2. Step 2: Convert to fraction form
    189,876.87/262,029.65 = 109,275.03/x
  3. Step 3: Cross multiply
    189,876.87x = 262,029.65 × 109,275.03
  4. Step 4: Simplify right side
    189,876.87x = 28,633,297,318.26
  5. Step 5: Solve for x
    x = 28,633,297,318.26/189,876.87
  6. Step 6: Final answer
    x = 150,799.29

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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.