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Finding the Fourth Proportional to 199,393.98, 275,153.96 and 118,819.70

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Solution

The fourth proportional to 199,393.98, 275,153.96 and 118,819.70 is: 163,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,393.98 : 275,153.96 = 118,819.70 : x
  2. Step 2: Convert to fraction form
    199,393.98/275,153.96 = 118,819.70/x
  3. Step 3: Cross multiply
    199,393.98x = 275,153.96 × 118,819.70
  4. Step 4: Simplify right side
    199,393.98x = 32,693,710,981.01
  5. Step 5: Solve for x
    x = 32,693,710,981.01/199,393.98
  6. Step 6: Final answer
    x = 163,965.39

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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.