Home / 136,118.58-187,830.78-126,087.54

Finding the Fourth Proportional to 136,118.58, 187,830.78 and 126,087.54

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Solution

The fourth proportional to 136,118.58, 187,830.78 and 126,087.54 is: 173,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,118.58 : 187,830.78 = 126,087.54 : x
  2. Step 2: Convert to fraction form
    136,118.58/187,830.78 = 126,087.54/x
  3. Step 3: Cross multiply
    136,118.58x = 187,830.78 × 126,087.54
  4. Step 4: Simplify right side
    136,118.58x = 23,683,120,986.48
  5. Step 5: Solve for x
    x = 23,683,120,986.48/136,118.58
  6. Step 6: Final answer
    x = 173,988.89

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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.