Home / 136,451.44-188,290.20-100,661.32

Finding the Fourth Proportional to 136,451.44, 188,290.20 and 100,661.32

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Solution

The fourth proportional to 136,451.44, 188,290.20 and 100,661.32 is: 138,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,451.44 : 188,290.20 = 100,661.32 : x
  2. Step 2: Convert to fraction form
    136,451.44/188,290.20 = 100,661.32/x
  3. Step 3: Cross multiply
    136,451.44x = 188,290.20 × 100,661.32
  4. Step 4: Simplify right side
    136,451.44x = 18,953,540,075.06
  5. Step 5: Solve for x
    x = 18,953,540,075.06/136,451.44
  6. Step 6: Final answer
    x = 138,903.19

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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.