Home / 136,812.20-204,872.70-89,810.60

Finding the Fourth Proportional to 136,812.20, 204,872.70 and 89,810.60

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Solution

The fourth proportional to 136,812.20, 204,872.70 and 89,810.60 is: 134,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,812.20 : 204,872.70 = 89,810.60 : x
  2. Step 2: Convert to fraction form
    136,812.20/204,872.70 = 89,810.60/x
  3. Step 3: Cross multiply
    136,812.20x = 204,872.70 × 89,810.60
  4. Step 4: Simplify right side
    136,812.20x = 18,399,740,110.62
  5. Step 5: Solve for x
    x = 18,399,740,110.62/136,812.20
  6. Step 6: Final answer
    x = 134,489.03

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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.