Home / 126,900.49-190,343.72-42,651.94

Finding the Fourth Proportional to 126,900.49, 190,343.72 and 42,651.94

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Solution

The fourth proportional to 126,900.49, 190,343.72 and 42,651.94 is: 63,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,900.49 : 190,343.72 = 42,651.94 : x
  2. Step 2: Convert to fraction form
    126,900.49/190,343.72 = 42,651.94/x
  3. Step 3: Cross multiply
    126,900.49x = 190,343.72 × 42,651.94
  4. Step 4: Simplify right side
    126,900.49x = 8,118,527,759.84
  5. Step 5: Solve for x
    x = 8,118,527,759.84/126,900.49
  6. Step 6: Final answer
    x = 63,975.54

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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.