Home / 191,204.09-263,868.08-105,169.71

Finding the Fourth Proportional to 191,204.09, 263,868.08 and 105,169.71

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Solution

The fourth proportional to 191,204.09, 263,868.08 and 105,169.71 is: 145,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,204.09 : 263,868.08 = 105,169.71 : x
  2. Step 2: Convert to fraction form
    191,204.09/263,868.08 = 105,169.71/x
  3. Step 3: Cross multiply
    191,204.09x = 263,868.08 × 105,169.71
  4. Step 4: Simplify right side
    191,204.09x = 27,750,929,451.86
  5. Step 5: Solve for x
    x = 27,750,929,451.86/191,204.09
  6. Step 6: Final answer
    x = 145,137.74

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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.