Home / 262,026.73-393,040.19-82,126.12

Finding the Fourth Proportional to 262,026.73, 393,040.19 and 82,126.12

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Solution

The fourth proportional to 262,026.73, 393,040.19 and 82,126.12 is: 123,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,026.73 : 393,040.19 = 82,126.12 : x
  2. Step 2: Convert to fraction form
    262,026.73/393,040.19 = 82,126.12/x
  3. Step 3: Cross multiply
    262,026.73x = 393,040.19 × 82,126.12
  4. Step 4: Simplify right side
    262,026.73x = 32,278,864,415.53
  5. Step 5: Solve for x
    x = 32,278,864,415.53/262,026.73
  6. Step 6: Final answer
    x = 123,189.21

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1.5x scale

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.