Home / 136,489.96-204,957.18-84,231.64

Finding the Fourth Proportional to 136,489.96, 204,957.18 and 84,231.64

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Solution

The fourth proportional to 136,489.96, 204,957.18 and 84,231.64 is: 126,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,489.96 : 204,957.18 = 84,231.64 : x
  2. Step 2: Convert to fraction form
    136,489.96/204,957.18 = 84,231.64/x
  3. Step 3: Cross multiply
    136,489.96x = 204,957.18 × 84,231.64
  4. Step 4: Simplify right side
    136,489.96x = 17,263,879,401.18
  5. Step 5: Solve for x
    x = 17,263,879,401.18/136,489.96
  6. Step 6: Final answer
    x = 126,484.61

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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.