Home / 135,890.32-203,757-52,687.12

Finding the Fourth Proportional to 135,890.32, 203,757 and 52,687.12

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Solution

The fourth proportional to 135,890.32, 203,757 and 52,687.12 is: 79,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,890.32 : 203,757 = 52,687.12 : x
  2. Step 2: Convert to fraction form
    135,890.32/203,757 = 52,687.12/x
  3. Step 3: Cross multiply
    135,890.32x = 203,757 × 52,687.12
  4. Step 4: Simplify right side
    135,890.32x = 10,735,369,509.84
  5. Step 5: Solve for x
    x = 10,735,369,509.84/135,890.32
  6. Step 6: Final answer
    x = 79,000.25

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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.