Home / 82,314.40-123,730.80-76,093.60

Finding the Fourth Proportional to 82,314.40, 123,730.80 and 76,093.60

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Solution

The fourth proportional to 82,314.40, 123,730.80 and 76,093.60 is: 114,380.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,314.40 : 123,730.80 = 76,093.60 : x
  2. Step 2: Convert to fraction form
    82,314.40/123,730.80 = 76,093.60/x
  3. Step 3: Cross multiply
    82,314.40x = 123,730.80 × 76,093.60
  4. Step 4: Simplify right side
    82,314.40x = 9,415,122,002.88
  5. Step 5: Solve for x
    x = 9,415,122,002.88/82,314.40
  6. Step 6: Final answer
    x = 114,380.01

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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.