Home / 135,492.10-203,468.55-100,471.30

Finding the Fourth Proportional to 135,492.10, 203,468.55 and 100,471.30

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Solution

The fourth proportional to 135,492.10, 203,468.55 and 100,471.30 is: 150,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,492.10 : 203,468.55 = 100,471.30 : x
  2. Step 2: Convert to fraction form
    135,492.10/203,468.55 = 100,471.30/x
  3. Step 3: Cross multiply
    135,492.10x = 203,468.55 × 100,471.30
  4. Step 4: Simplify right side
    135,492.10x = 20,442,749,727.62
  5. Step 5: Solve for x
    x = 20,442,749,727.62/135,492.10
  6. Step 6: Final answer
    x = 150,877.80

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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.