Home / 136,263.36-187,999.68-82,531.20

Finding the Fourth Proportional to 136,263.36, 187,999.68 and 82,531.20

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Solution

The fourth proportional to 136,263.36, 187,999.68 and 82,531.20 is: 113,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,263.36 : 187,999.68 = 82,531.20 : x
  2. Step 2: Convert to fraction form
    136,263.36/187,999.68 = 82,531.20/x
  3. Step 3: Cross multiply
    136,263.36x = 187,999.68 × 82,531.20
  4. Step 4: Simplify right side
    136,263.36x = 15,515,839,190.02
  5. Step 5: Solve for x
    x = 15,515,839,190.02/136,263.36
  6. Step 6: Final answer
    x = 113,866.55

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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.