Home / 82,293.84-123,330.60-71,154.72

Finding the Fourth Proportional to 82,293.84, 123,330.60 and 71,154.72

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Solution

The fourth proportional to 82,293.84, 123,330.60 and 71,154.72 is: 106,636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,293.84 : 123,330.60 = 71,154.72 : x
  2. Step 2: Convert to fraction form
    82,293.84/123,330.60 = 71,154.72/x
  3. Step 3: Cross multiply
    82,293.84x = 123,330.60 × 71,154.72
  4. Step 4: Simplify right side
    82,293.84x = 8,775,554,310.43
  5. Step 5: Solve for x
    x = 8,775,554,310.43/82,293.84
  6. Step 6: Final answer
    x = 106,636.83

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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.