Home / 191,141.11-263,781.50-105,106.64

Finding the Fourth Proportional to 191,141.11, 263,781.50 and 105,106.64

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Solution

The fourth proportional to 191,141.11, 263,781.50 and 105,106.64 is: 145,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,141.11 : 263,781.50 = 105,106.64 : x
  2. Step 2: Convert to fraction form
    191,141.11/263,781.50 = 105,106.64/x
  3. Step 3: Cross multiply
    191,141.11x = 263,781.50 × 105,106.64
  4. Step 4: Simplify right side
    191,141.11x = 27,725,187,159.16
  5. Step 5: Solve for x
    x = 27,725,187,159.16/191,141.11
  6. Step 6: Final answer
    x = 145,050.88

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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.