Home / 191,156.24-263,796.63-105,120.77

Finding the Fourth Proportional to 191,156.24, 263,796.63 and 105,120.77

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Solution

The fourth proportional to 191,156.24, 263,796.63 and 105,120.77 is: 145,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,156.24 : 263,796.63 = 105,120.77 : x
  2. Step 2: Convert to fraction form
    191,156.24/263,796.63 = 105,120.77/x
  3. Step 3: Cross multiply
    191,156.24x = 263,796.63 × 105,120.77
  4. Step 4: Simplify right side
    191,156.24x = 27,730,503,550.02
  5. Step 5: Solve for x
    x = 27,730,503,550.02/191,156.24
  6. Step 6: Final answer
    x = 145,067.22

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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.