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Finding the Fourth Proportional to 147,702.11, 203,827.87 and 80,634.11

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Solution

The fourth proportional to 147,702.11, 203,827.87 and 80,634.11 is: 111,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,702.11 : 203,827.87 = 80,634.11 : x
  2. Step 2: Convert to fraction form
    147,702.11/203,827.87 = 80,634.11/x
  3. Step 3: Cross multiply
    147,702.11x = 203,827.87 × 80,634.11
  4. Step 4: Simplify right side
    147,702.11x = 16,435,478,890.65
  5. Step 5: Solve for x
    x = 16,435,478,890.65/147,702.11
  6. Step 6: Final answer
    x = 111,274.50

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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.