Home / 189,876.12-262,028.61-109,274.28

Finding the Fourth Proportional to 189,876.12, 262,028.61 and 109,274.28

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Solution

The fourth proportional to 189,876.12, 262,028.61 and 109,274.28 is: 150,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,876.12 : 262,028.61 = 109,274.28 : x
  2. Step 2: Convert to fraction form
    189,876.12/262,028.61 = 109,274.28/x
  3. Step 3: Cross multiply
    189,876.12x = 262,028.61 × 109,274.28
  4. Step 4: Simplify right side
    189,876.12x = 28,632,987,697.15
  5. Step 5: Solve for x
    x = 28,632,987,697.15/189,876.12
  6. Step 6: Final answer
    x = 150,798.26

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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.