Home / 191,134.87-263,772.89-105,100.38

Finding the Fourth Proportional to 191,134.87, 263,772.89 and 105,100.38

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Solution

The fourth proportional to 191,134.87, 263,772.89 and 105,100.38 is: 145,042.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,134.87 : 263,772.89 = 105,100.38 : x
  2. Step 2: Convert to fraction form
    191,134.87/263,772.89 = 105,100.38/x
  3. Step 3: Cross multiply
    191,134.87x = 263,772.89 × 105,100.38
  4. Step 4: Simplify right side
    191,134.87x = 27,722,631,106.63
  5. Step 5: Solve for x
    x = 27,722,631,106.63/191,134.87
  6. Step 6: Final answer
    x = 145,042.25

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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.