Home / 191,148.27-263,791.40-105,113.85

Finding the Fourth Proportional to 191,148.27, 263,791.40 and 105,113.85

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Solution

The fourth proportional to 191,148.27, 263,791.40 and 105,113.85 is: 145,060.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,148.27 : 263,791.40 = 105,113.85 : x
  2. Step 2: Convert to fraction form
    191,148.27/263,791.40 = 105,113.85/x
  3. Step 3: Cross multiply
    191,148.27x = 263,791.40 × 105,113.85
  4. Step 4: Simplify right side
    191,148.27x = 27,728,129,125.32
  5. Step 5: Solve for x
    x = 27,728,129,125.32/191,148.27
  6. Step 6: Final answer
    x = 145,060.84

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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.