Home / 136,818.42-204,858.57-89,315.87

Finding the Fourth Proportional to 136,818.42, 204,858.57 and 89,315.87

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Solution

The fourth proportional to 136,818.42, 204,858.57 and 89,315.87 is: 133,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,818.42 : 204,858.57 = 89,315.87 : x
  2. Step 2: Convert to fraction form
    136,818.42/204,858.57 = 89,315.87/x
  3. Step 3: Cross multiply
    136,818.42x = 204,858.57 × 89,315.87
  4. Step 4: Simplify right side
    136,818.42x = 18,297,120,214.75
  5. Step 5: Solve for x
    x = 18,297,120,214.75/136,818.42
  6. Step 6: Final answer
    x = 133,732.88

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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.