Home / 136,209.72-204,505.78-69,697.56

Finding the Fourth Proportional to 136,209.72, 204,505.78 and 69,697.56

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Solution

The fourth proportional to 136,209.72, 204,505.78 and 69,697.56 is: 104,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,209.72 : 204,505.78 = 69,697.56 : x
  2. Step 2: Convert to fraction form
    136,209.72/204,505.78 = 69,697.56/x
  3. Step 3: Cross multiply
    136,209.72x = 204,505.78 × 69,697.56
  4. Step 4: Simplify right side
    136,209.72x = 14,253,553,871.90
  5. Step 5: Solve for x
    x = 14,253,553,871.90/136,209.72
  6. Step 6: Final answer
    x = 104,644.18

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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.