Home / 191,149.49-263,793.06-105,115.04

Finding the Fourth Proportional to 191,149.49, 263,793.06 and 105,115.04

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Solution

The fourth proportional to 191,149.49, 263,793.06 and 105,115.04 is: 145,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,149.49 : 263,793.06 = 105,115.04 : x
  2. Step 2: Convert to fraction form
    191,149.49/263,793.06 = 105,115.04/x
  3. Step 3: Cross multiply
    191,149.49x = 263,793.06 × 105,115.04
  4. Step 4: Simplify right side
    191,149.49x = 27,728,618,053.62
  5. Step 5: Solve for x
    x = 27,728,618,053.62/191,149.49
  6. Step 6: Final answer
    x = 145,062.47

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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.