Home / 107,781.40-161,595.30-41,195.80

Finding the Fourth Proportional to 107,781.40, 161,595.30 and 41,195.80

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Solution

The fourth proportional to 107,781.40, 161,595.30 and 41,195.80 is: 61,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,781.40 : 161,595.30 = 41,195.80 : x
  2. Step 2: Convert to fraction form
    107,781.40/161,595.30 = 41,195.80/x
  3. Step 3: Cross multiply
    107,781.40x = 161,595.30 × 41,195.80
  4. Step 4: Simplify right side
    107,781.40x = 6,657,047,659.74
  5. Step 5: Solve for x
    x = 6,657,047,659.74/107,781.40
  6. Step 6: Final answer
    x = 61,764.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.