Home / 134,619.30-201,540.15-82,131.30

Finding the Fourth Proportional to 134,619.30, 201,540.15 and 82,131.30

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Solution

The fourth proportional to 134,619.30, 201,540.15 and 82,131.30 is: 122,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,619.30 : 201,540.15 = 82,131.30 : x
  2. Step 2: Convert to fraction form
    134,619.30/201,540.15 = 82,131.30/x
  3. Step 3: Cross multiply
    134,619.30x = 201,540.15 × 82,131.30
  4. Step 4: Simplify right side
    134,619.30x = 16,552,754,521.70
  5. Step 5: Solve for x
    x = 16,552,754,521.70/134,619.30
  6. Step 6: Final answer
    x = 122,959.74

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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.