Home / 136,790.44-188,775.30-79,425.32

Finding the Fourth Proportional to 136,790.44, 188,775.30 and 79,425.32

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Solution

The fourth proportional to 136,790.44, 188,775.30 and 79,425.32 is: 109,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,790.44 : 188,775.30 = 79,425.32 : x
  2. Step 2: Convert to fraction form
    136,790.44/188,775.30 = 79,425.32/x
  3. Step 3: Cross multiply
    136,790.44x = 188,775.30 × 79,425.32
  4. Step 4: Simplify right side
    136,790.44x = 14,993,538,610.60
  5. Step 5: Solve for x
    x = 14,993,538,610.60/136,790.44
  6. Step 6: Final answer
    x = 109,609.55

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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.