Home / 189,967.32-262,136.88-105,082.56

Finding the Fourth Proportional to 189,967.32, 262,136.88 and 105,082.56

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Solution

The fourth proportional to 189,967.32, 262,136.88 and 105,082.56 is: 145,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,967.32 : 262,136.88 = 105,082.56 : x
  2. Step 2: Convert to fraction form
    189,967.32/262,136.88 = 105,082.56/x
  3. Step 3: Cross multiply
    189,967.32x = 262,136.88 × 105,082.56
  4. Step 4: Simplify right side
    189,967.32x = 27,546,014,420.81
  5. Step 5: Solve for x
    x = 27,546,014,420.81/189,967.32
  6. Step 6: Final answer
    x = 145,003.96

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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.