Home / 136,407.11-188,327.97-100,534.64

Finding the Fourth Proportional to 136,407.11, 188,327.97 and 100,534.64

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Solution

The fourth proportional to 136,407.11, 188,327.97 and 100,534.64 is: 138,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,407.11 : 188,327.97 = 100,534.64 : x
  2. Step 2: Convert to fraction form
    136,407.11/188,327.97 = 100,534.64/x
  3. Step 3: Cross multiply
    136,407.11x = 188,327.97 × 100,534.64
  4. Step 4: Simplify right side
    136,407.11x = 18,933,483,724.24
  5. Step 5: Solve for x
    x = 18,933,483,724.24/136,407.11
  6. Step 6: Final answer
    x = 138,801.30

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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.