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Finding the Fourth Proportional to 144,702.05, 217,127.08 and 68,886.25

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Solution

The fourth proportional to 144,702.05, 217,127.08 and 68,886.25 is: 103,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,702.05 : 217,127.08 = 68,886.25 : x
  2. Step 2: Convert to fraction form
    144,702.05/217,127.08 = 68,886.25/x
  3. Step 3: Cross multiply
    144,702.05x = 217,127.08 × 68,886.25
  4. Step 4: Simplify right side
    144,702.05x = 14,957,069,857.94
  5. Step 5: Solve for x
    x = 14,957,069,857.94/144,702.05
  6. Step 6: Final answer
    x = 103,364.61

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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.