Home / 135,455.20-203,189.20-42,026.40

Finding the Fourth Proportional to 135,455.20, 203,189.20 and 42,026.40

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Solution

The fourth proportional to 135,455.20, 203,189.20 and 42,026.40 is: 63,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,455.20 : 203,189.20 = 42,026.40 : x
  2. Step 2: Convert to fraction form
    135,455.20/203,189.20 = 42,026.40/x
  3. Step 3: Cross multiply
    135,455.20x = 203,189.20 × 42,026.40
  4. Step 4: Simplify right side
    135,455.20x = 8,539,310,594.88
  5. Step 5: Solve for x
    x = 8,539,310,594.88/135,455.20
  6. Step 6: Final answer
    x = 63,041.59

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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.