Home / 189,428.18-284,195.58-82,821.50

Finding the Fourth Proportional to 189,428.18, 284,195.58 and 82,821.50

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Solution

The fourth proportional to 189,428.18, 284,195.58 and 82,821.50 is: 124,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,428.18 : 284,195.58 = 82,821.50 : x
  2. Step 2: Convert to fraction form
    189,428.18/284,195.58 = 82,821.50/x
  3. Step 3: Cross multiply
    189,428.18x = 284,195.58 × 82,821.50
  4. Step 4: Simplify right side
    189,428.18x = 23,537,503,311.43
  5. Step 5: Solve for x
    x = 23,537,503,311.43/189,428.18
  6. Step 6: Final answer
    x = 124,255.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.