Home / 135,983.30-203,780.55-100,165.10

Finding the Fourth Proportional to 135,983.30, 203,780.55 and 100,165.10

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Solution

The fourth proportional to 135,983.30, 203,780.55 and 100,165.10 is: 150,104.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,983.30 : 203,780.55 = 100,165.10 : x
  2. Step 2: Convert to fraction form
    135,983.30/203,780.55 = 100,165.10/x
  3. Step 3: Cross multiply
    135,983.30x = 203,780.55 × 100,165.10
  4. Step 4: Simplify right side
    135,983.30x = 20,411,699,168.81
  5. Step 5: Solve for x
    x = 20,411,699,168.81/135,983.30
  6. Step 6: Final answer
    x = 150,104.46

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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.