Home / 135,627.60-203,441.40-121,112.40

Finding the Fourth Proportional to 135,627.60, 203,441.40 and 121,112.40

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Solution

The fourth proportional to 135,627.60, 203,441.40 and 121,112.40 is: 181,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,627.60 : 203,441.40 = 121,112.40 : x
  2. Step 2: Convert to fraction form
    135,627.60/203,441.40 = 121,112.40/x
  3. Step 3: Cross multiply
    135,627.60x = 203,441.40 × 121,112.40
  4. Step 4: Simplify right side
    135,627.60x = 24,639,276,213.36
  5. Step 5: Solve for x
    x = 24,639,276,213.36/135,627.60
  6. Step 6: Final answer
    x = 181,668.60

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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.