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Finding the Fourth Proportional to 139,827.88, 209,625.72 and 55,536.04

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Solution

The fourth proportional to 139,827.88, 209,625.72 and 55,536.04 is: 83,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,827.88 : 209,625.72 = 55,536.04 : x
  2. Step 2: Convert to fraction form
    139,827.88/209,625.72 = 55,536.04/x
  3. Step 3: Cross multiply
    139,827.88x = 209,625.72 × 55,536.04
  4. Step 4: Simplify right side
    139,827.88x = 11,641,782,370.95
  5. Step 5: Solve for x
    x = 11,641,782,370.95/139,827.88
  6. Step 6: Final answer
    x = 83,257.95

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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.