Home / 191,202.20-263,865.47-105,167.82

Finding the Fourth Proportional to 191,202.20, 263,865.47 and 105,167.82

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Solution

The fourth proportional to 191,202.20, 263,865.47 and 105,167.82 is: 145,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,202.20 : 263,865.47 = 105,167.82 : x
  2. Step 2: Convert to fraction form
    191,202.20/263,865.47 = 105,167.82/x
  3. Step 3: Cross multiply
    191,202.20x = 263,865.47 × 105,167.82
  4. Step 4: Simplify right side
    191,202.20x = 27,750,155,727.34
  5. Step 5: Solve for x
    x = 27,750,155,727.34/191,202.20
  6. Step 6: Final answer
    x = 145,135.13

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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.