Home / 191,188.27-263,846.43-105,153.75

Finding the Fourth Proportional to 191,188.27, 263,846.43 and 105,153.75

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Solution

The fourth proportional to 191,188.27, 263,846.43 and 105,153.75 is: 145,115.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,188.27 : 263,846.43 = 105,153.75 : x
  2. Step 2: Convert to fraction form
    191,188.27/263,846.43 = 105,153.75/x
  3. Step 3: Cross multiply
    191,188.27x = 263,846.43 × 105,153.75
  4. Step 4: Simplify right side
    191,188.27x = 27,744,441,613.22
  5. Step 5: Solve for x
    x = 27,744,441,613.22/191,188.27
  6. Step 6: Final answer
    x = 145,115.82

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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.