Home / 135,930.20-203,895.30-100,938.20

Finding the Fourth Proportional to 135,930.20, 203,895.30 and 100,938.20

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Solution

The fourth proportional to 135,930.20, 203,895.30 and 100,938.20 is: 151,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,930.20 : 203,895.30 = 100,938.20 : x
  2. Step 2: Convert to fraction form
    135,930.20/203,895.30 = 100,938.20/x
  3. Step 3: Cross multiply
    135,930.20x = 203,895.30 × 100,938.20
  4. Step 4: Simplify right side
    135,930.20x = 20,580,824,570.46
  5. Step 5: Solve for x
    x = 20,580,824,570.46/135,930.20
  6. Step 6: Final answer
    x = 151,407.30

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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.