Home / 191,009.87-263,595.18-119,431.38

Finding the Fourth Proportional to 191,009.87, 263,595.18 and 119,431.38

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Solution

The fourth proportional to 191,009.87, 263,595.18 and 119,431.38 is: 164,816.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.87 : 263,595.18 = 119,431.38 : x
  2. Step 2: Convert to fraction form
    191,009.87/263,595.18 = 119,431.38/x
  3. Step 3: Cross multiply
    191,009.87x = 263,595.18 × 119,431.38
  4. Step 4: Simplify right side
    191,009.87x = 31,481,536,754.54
  5. Step 5: Solve for x
    x = 31,481,536,754.54/191,009.87
  6. Step 6: Final answer
    x = 164,816.29

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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.