Home / 136,736.20-205,104.30-109,088.20

Finding the Fourth Proportional to 136,736.20, 205,104.30 and 109,088.20

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Solution

The fourth proportional to 136,736.20, 205,104.30 and 109,088.20 is: 163,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,736.20 : 205,104.30 = 109,088.20 : x
  2. Step 2: Convert to fraction form
    136,736.20/205,104.30 = 109,088.20/x
  3. Step 3: Cross multiply
    136,736.20x = 205,104.30 × 109,088.20
  4. Step 4: Simplify right side
    136,736.20x = 22,374,458,899.26
  5. Step 5: Solve for x
    x = 22,374,458,899.26/136,736.20
  6. Step 6: Final answer
    x = 163,632.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.