Home / 136,669.20-188,527.68-80,069.64

Finding the Fourth Proportional to 136,669.20, 188,527.68 and 80,069.64

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Solution

The fourth proportional to 136,669.20, 188,527.68 and 80,069.64 is: 110,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,669.20 : 188,527.68 = 80,069.64 : x
  2. Step 2: Convert to fraction form
    136,669.20/188,527.68 = 80,069.64/x
  3. Step 3: Cross multiply
    136,669.20x = 188,527.68 × 80,069.64
  4. Step 4: Simplify right side
    136,669.20x = 15,095,343,467.64
  5. Step 5: Solve for x
    x = 15,095,343,467.64/136,669.20
  6. Step 6: Final answer
    x = 110,451.69

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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.