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Finding the Fourth Proportional to 192,118.70, 288,191.89 and 73,790.02

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Solution

The fourth proportional to 192,118.70, 288,191.89 and 73,790.02 is: 110,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,118.70 : 288,191.89 = 73,790.02 : x
  2. Step 2: Convert to fraction form
    192,118.70/288,191.89 = 73,790.02/x
  3. Step 3: Cross multiply
    192,118.70x = 288,191.89 × 73,790.02
  4. Step 4: Simplify right side
    192,118.70x = 21,265,685,779.42
  5. Step 5: Solve for x
    x = 21,265,685,779.42/192,118.70
  6. Step 6: Final answer
    x = 110,690.35

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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.