Home / 191,211.54-263,878.38-105,174.18

Finding the Fourth Proportional to 191,211.54, 263,878.38 and 105,174.18

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Solution

The fourth proportional to 191,211.54, 263,878.38 and 105,174.18 is: 145,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,211.54 : 263,878.38 = 105,174.18 : x
  2. Step 2: Convert to fraction form
    191,211.54/263,878.38 = 105,174.18/x
  3. Step 3: Cross multiply
    191,211.54x = 263,878.38 × 105,174.18
  4. Step 4: Simplify right side
    191,211.54x = 27,753,192,236.23
  5. Step 5: Solve for x
    x = 27,753,192,236.23/191,211.54
  6. Step 6: Final answer
    x = 145,143.92

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1.5x scale

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.