Home / 191,988-264,942.68-107,104.96

Finding the Fourth Proportional to 191,988, 264,942.68 and 107,104.96

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Solution

The fourth proportional to 191,988, 264,942.68 and 107,104.96 is: 147,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,988 : 264,942.68 = 107,104.96 : x
  2. Step 2: Convert to fraction form
    191,988/264,942.68 = 107,104.96/x
  3. Step 3: Cross multiply
    191,988x = 264,942.68 × 107,104.96
  4. Step 4: Simplify right side
    191,988x = 28,376,675,143.69
  5. Step 5: Solve for x
    x = 28,376,675,143.69/191,988
  6. Step 6: Final answer
    x = 147,804.42

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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.