Home / 126,913.20-190,240.20-74,295.60

Finding the Fourth Proportional to 126,913.20, 190,240.20 and 74,295.60

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Solution

The fourth proportional to 126,913.20, 190,240.20 and 74,295.60 is: 111,367.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,913.20 : 190,240.20 = 74,295.60 : x
  2. Step 2: Convert to fraction form
    126,913.20/190,240.20 = 74,295.60/x
  3. Step 3: Cross multiply
    126,913.20x = 190,240.20 × 74,295.60
  4. Step 4: Simplify right side
    126,913.20x = 14,134,009,803.12
  5. Step 5: Solve for x
    x = 14,134,009,803.12/126,913.20
  6. Step 6: Final answer
    x = 111,367.53

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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.