Home / 191,121.26-263,752.40-105,083.84

Finding the Fourth Proportional to 191,121.26, 263,752.40 and 105,083.84

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Solution

The fourth proportional to 191,121.26, 263,752.40 and 105,083.84 is: 145,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,121.26 : 263,752.40 = 105,083.84 : x
  2. Step 2: Convert to fraction form
    191,121.26/263,752.40 = 105,083.84/x
  3. Step 3: Cross multiply
    191,121.26x = 263,752.40 × 105,083.84
  4. Step 4: Simplify right side
    191,121.26x = 27,716,115,001.22
  5. Step 5: Solve for x
    x = 27,716,115,001.22/191,121.26
  6. Step 6: Final answer
    x = 145,018.48

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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.