Home / 191,147.49-263,790.30-105,113.04

Finding the Fourth Proportional to 191,147.49, 263,790.30 and 105,113.04

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Solution

The fourth proportional to 191,147.49, 263,790.30 and 105,113.04 is: 145,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,147.49 : 263,790.30 = 105,113.04 : x
  2. Step 2: Convert to fraction form
    191,147.49/263,790.30 = 105,113.04/x
  3. Step 3: Cross multiply
    191,147.49x = 263,790.30 × 105,113.04
  4. Step 4: Simplify right side
    191,147.49x = 27,727,800,355.51
  5. Step 5: Solve for x
    x = 27,727,800,355.51/191,147.49
  6. Step 6: Final answer
    x = 145,059.71

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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.