Home / 135,895.53-203,812.31-51,665.05

Finding the Fourth Proportional to 135,895.53, 203,812.31 and 51,665.05

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Solution

The fourth proportional to 135,895.53, 203,812.31 and 51,665.05 is: 77,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,895.53 : 203,812.31 = 51,665.05 : x
  2. Step 2: Convert to fraction form
    135,895.53/203,812.31 = 51,665.05/x
  3. Step 3: Cross multiply
    135,895.53x = 203,812.31 × 51,665.05
  4. Step 4: Simplify right side
    135,895.53x = 10,529,973,570.69
  5. Step 5: Solve for x
    x = 10,529,973,570.69/135,895.53
  6. Step 6: Final answer
    x = 77,485.80

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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.