Home / 191,120.70-263,723.64-105,065.49

Finding the Fourth Proportional to 191,120.70, 263,723.64 and 105,065.49

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Solution

The fourth proportional to 191,120.70, 263,723.64 and 105,065.49 is: 144,977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,120.70 : 263,723.64 = 105,065.49 : x
  2. Step 2: Convert to fraction form
    191,120.70/263,723.64 = 105,065.49/x
  3. Step 3: Cross multiply
    191,120.70x = 263,723.64 × 105,065.49
  4. Step 4: Simplify right side
    191,120.70x = 27,708,253,461.18
  5. Step 5: Solve for x
    x = 27,708,253,461.18/191,120.70
  6. Step 6: Final answer
    x = 144,977.77

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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.