Home / 191,143.26-263,772.37-105,102.41

Finding the Fourth Proportional to 191,143.26, 263,772.37 and 105,102.41

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Solution

The fourth proportional to 191,143.26, 263,772.37 and 105,102.41 is: 145,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,143.26 : 263,772.37 = 105,102.41 : x
  2. Step 2: Convert to fraction form
    191,143.26/263,772.37 = 105,102.41/x
  3. Step 3: Cross multiply
    191,143.26x = 263,772.37 × 105,102.41
  4. Step 4: Simplify right side
    191,143.26x = 27,723,111,778.41
  5. Step 5: Solve for x
    x = 27,723,111,778.41/191,143.26
  6. Step 6: Final answer
    x = 145,038.40

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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.