Home / 126,837.20-190,284.60-74,219.60

Finding the Fourth Proportional to 126,837.20, 190,284.60 and 74,219.60

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Solution

The fourth proportional to 126,837.20, 190,284.60 and 74,219.60 is: 111,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,837.20 : 190,284.60 = 74,219.60 : x
  2. Step 2: Convert to fraction form
    126,837.20/190,284.60 = 74,219.60/x
  3. Step 3: Cross multiply
    126,837.20x = 190,284.60 × 74,219.60
  4. Step 4: Simplify right side
    126,837.20x = 14,122,846,898.16
  5. Step 5: Solve for x
    x = 14,122,846,898.16/126,837.20
  6. Step 6: Final answer
    x = 111,346.25

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1.5x scale

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.