Home / 135,412.10-203,118.15-133,079.30

Finding the Fourth Proportional to 135,412.10, 203,118.15 and 133,079.30

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Solution

The fourth proportional to 135,412.10, 203,118.15 and 133,079.30 is: 199,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,412.10 : 203,118.15 = 133,079.30 : x
  2. Step 2: Convert to fraction form
    135,412.10/203,118.15 = 133,079.30/x
  3. Step 3: Cross multiply
    135,412.10x = 203,118.15 × 133,079.30
  4. Step 4: Simplify right side
    135,412.10x = 27,030,821,219.30
  5. Step 5: Solve for x
    x = 27,030,821,219.30/135,412.10
  6. Step 6: Final answer
    x = 199,618.95

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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.