Home / 189,314.84-261,234.28-104,431.90

Finding the Fourth Proportional to 189,314.84, 261,234.28 and 104,431.90

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Solution

The fourth proportional to 189,314.84, 261,234.28 and 104,431.90 is: 144,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,314.84 : 261,234.28 = 104,431.90 : x
  2. Step 2: Convert to fraction form
    189,314.84/261,234.28 = 104,431.90/x
  3. Step 3: Cross multiply
    189,314.84x = 261,234.28 × 104,431.90
  4. Step 4: Simplify right side
    189,314.84x = 27,281,192,205.53
  5. Step 5: Solve for x
    x = 27,281,192,205.53/189,314.84
  6. Step 6: Final answer
    x = 144,104.88

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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.