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Finding the Fourth Proportional to 122,551.70, 183,827.55 and 80,561.30

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Solution

The fourth proportional to 122,551.70, 183,827.55 and 80,561.30 is: 120,841.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,551.70 : 183,827.55 = 80,561.30 : x
  2. Step 2: Convert to fraction form
    122,551.70/183,827.55 = 80,561.30/x
  3. Step 3: Cross multiply
    122,551.70x = 183,827.55 × 80,561.30
  4. Step 4: Simplify right side
    122,551.70x = 14,809,386,403.82
  5. Step 5: Solve for x
    x = 14,809,386,403.82/122,551.70
  6. Step 6: Final answer
    x = 120,841.95

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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.