Home / 136,611.22-188,519.04-75,357.26

Finding the Fourth Proportional to 136,611.22, 188,519.04 and 75,357.26

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Solution

The fourth proportional to 136,611.22, 188,519.04 and 75,357.26 is: 103,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,611.22 : 188,519.04 = 75,357.26 : x
  2. Step 2: Convert to fraction form
    136,611.22/188,519.04 = 75,357.26/x
  3. Step 3: Cross multiply
    136,611.22x = 188,519.04 × 75,357.26
  4. Step 4: Simplify right side
    136,611.22x = 14,206,278,312.23
  5. Step 5: Solve for x
    x = 14,206,278,312.23/136,611.22
  6. Step 6: Final answer
    x = 103,990.57

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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.