Home / 126,933.20-190,270.20-74,315.60

Finding the Fourth Proportional to 126,933.20, 190,270.20 and 74,315.60

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Solution

The fourth proportional to 126,933.20, 190,270.20 and 74,315.60 is: 111,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,933.20 : 190,270.20 = 74,315.60 : x
  2. Step 2: Convert to fraction form
    126,933.20/190,270.20 = 74,315.60/x
  3. Step 3: Cross multiply
    126,933.20x = 190,270.20 × 74,315.60
  4. Step 4: Simplify right side
    126,933.20x = 14,140,044,075.12
  5. Step 5: Solve for x
    x = 14,140,044,075.12/126,933.20
  6. Step 6: Final answer
    x = 111,397.52

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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.