Home / 135,408.10-203,112.15-133,075.30

Finding the Fourth Proportional to 135,408.10, 203,112.15 and 133,075.30

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Solution

The fourth proportional to 135,408.10, 203,112.15 and 133,075.30 is: 199,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,408.10 : 203,112.15 = 133,075.30 : x
  2. Step 2: Convert to fraction form
    135,408.10/203,112.15 = 133,075.30/x
  3. Step 3: Cross multiply
    135,408.10x = 203,112.15 × 133,075.30
  4. Step 4: Simplify right side
    135,408.10x = 27,029,210,294.90
  5. Step 5: Solve for x
    x = 27,029,210,294.90/135,408.10
  6. Step 6: Final answer
    x = 199,612.95

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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.