Home / 191,131.56-263,738.58-105,076.38

Finding the Fourth Proportional to 191,131.56, 263,738.58 and 105,076.38

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Solution

The fourth proportional to 191,131.56, 263,738.58 and 105,076.38 is: 144,992.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,131.56 : 263,738.58 = 105,076.38 : x
  2. Step 2: Convert to fraction form
    191,131.56/263,738.58 = 105,076.38/x
  3. Step 3: Cross multiply
    191,131.56x = 263,738.58 × 105,076.38
  4. Step 4: Simplify right side
    191,131.56x = 27,712,695,252.74
  5. Step 5: Solve for x
    x = 27,712,695,252.74/191,131.56
  6. Step 6: Final answer
    x = 144,992.77

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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.