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Finding the Fourth Proportional to 136,388.81, 188,222.38 and 75,959.44

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Solution

The fourth proportional to 136,388.81, 188,222.38 and 75,959.44 is: 104,827.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,388.81 : 188,222.38 = 75,959.44 : x
  2. Step 2: Convert to fraction form
    136,388.81/188,222.38 = 75,959.44/x
  3. Step 3: Cross multiply
    136,388.81x = 188,222.38 × 75,959.44
  4. Step 4: Simplify right side
    136,388.81x = 14,297,266,347.08
  5. Step 5: Solve for x
    x = 14,297,266,347.08/136,388.81
  6. Step 6: Final answer
    x = 104,827.27

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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.