Home / 147,702.12-203,827.88-80,634.12

Finding the Fourth Proportional to 147,702.12, 203,827.88 and 80,634.12

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Solution

The fourth proportional to 147,702.12, 203,827.88 and 80,634.12 is: 111,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,702.12 : 203,827.88 = 80,634.12 : x
  2. Step 2: Convert to fraction form
    147,702.12/203,827.88 = 80,634.12/x
  3. Step 3: Cross multiply
    147,702.12x = 203,827.88 × 80,634.12
  4. Step 4: Simplify right side
    147,702.12x = 16,435,481,735.27
  5. Step 5: Solve for x
    x = 16,435,481,735.27/147,702.12
  6. Step 6: Final answer
    x = 111,274.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.