Home / 136,664.42-204,855.14-66,456.50

Finding the Fourth Proportional to 136,664.42, 204,855.14 and 66,456.50

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Solution

The fourth proportional to 136,664.42, 204,855.14 and 66,456.50 is: 99,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664.42 : 204,855.14 = 66,456.50 : x
  2. Step 2: Convert to fraction form
    136,664.42/204,855.14 = 66,456.50/x
  3. Step 3: Cross multiply
    136,664.42x = 204,855.14 × 66,456.50
  4. Step 4: Simplify right side
    136,664.42x = 13,613,954,753.28
  5. Step 5: Solve for x
    x = 13,613,954,753.28/136,664.42
  6. Step 6: Final answer
    x = 99,615.94

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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.