Home / 189,976.50-262,144.89-105,082.02

Finding the Fourth Proportional to 189,976.50, 262,144.89 and 105,082.02

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Solution

The fourth proportional to 189,976.50, 262,144.89 and 105,082.02 is: 145,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,976.50 : 262,144.89 = 105,082.02 : x
  2. Step 2: Convert to fraction form
    189,976.50/262,144.89 = 105,082.02/x
  3. Step 3: Cross multiply
    189,976.50x = 262,144.89 × 105,082.02
  4. Step 4: Simplify right side
    189,976.50x = 27,546,714,573.88
  5. Step 5: Solve for x
    x = 27,546,714,573.88/189,976.50
  6. Step 6: Final answer
    x = 145,000.64

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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.