Home / 136,396.96-188,220.38-75,131.22

Finding the Fourth Proportional to 136,396.96, 188,220.38 and 75,131.22

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Solution

The fourth proportional to 136,396.96, 188,220.38 and 75,131.22 is: 103,676.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,396.96 : 188,220.38 = 75,131.22 : x
  2. Step 2: Convert to fraction form
    136,396.96/188,220.38 = 75,131.22/x
  3. Step 3: Cross multiply
    136,396.96x = 188,220.38 × 75,131.22
  4. Step 4: Simplify right side
    136,396.96x = 14,141,226,778.26
  5. Step 5: Solve for x
    x = 14,141,226,778.26/136,396.96
  6. Step 6: Final answer
    x = 103,676.99

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1.5x scale

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.