Home / 105,911.13-146,157.20-58,164.48

Finding the Fourth Proportional to 105,911.13, 146,157.20 and 58,164.48

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Solution

The fourth proportional to 105,911.13, 146,157.20 and 58,164.48 is: 80,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,911.13 : 146,157.20 = 58,164.48 : x
  2. Step 2: Convert to fraction form
    105,911.13/146,157.20 = 58,164.48/x
  3. Step 3: Cross multiply
    105,911.13x = 146,157.20 × 58,164.48
  4. Step 4: Simplify right side
    105,911.13x = 8,501,157,636.58
  5. Step 5: Solve for x
    x = 8,501,157,636.58/105,911.13
  6. Step 6: Final answer
    x = 80,266.89

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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.