Home / 135,423.04-203,212.34-105,757.60

Finding the Fourth Proportional to 135,423.04, 203,212.34 and 105,757.60

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Solution

The fourth proportional to 135,423.04, 203,212.34 and 105,757.60 is: 158,697.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,423.04 : 203,212.34 = 105,757.60 : x
  2. Step 2: Convert to fraction form
    135,423.04/203,212.34 = 105,757.60/x
  3. Step 3: Cross multiply
    135,423.04x = 203,212.34 × 105,757.60
  4. Step 4: Simplify right side
    135,423.04x = 21,491,248,728.56
  5. Step 5: Solve for x
    x = 21,491,248,728.56/135,423.04
  6. Step 6: Final answer
    x = 158,697.14

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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.