Home / 116,708.42-174,781.98-66,636.75

Finding the Fourth Proportional to 116,708.42, 174,781.98 and 66,636.75

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Solution

The fourth proportional to 116,708.42, 174,781.98 and 66,636.75 is: 99,794.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,708.42 : 174,781.98 = 66,636.75 : x
  2. Step 2: Convert to fraction form
    116,708.42/174,781.98 = 66,636.75/x
  3. Step 3: Cross multiply
    116,708.42x = 174,781.98 × 66,636.75
  4. Step 4: Simplify right side
    116,708.42x = 11,646,902,783.81
  5. Step 5: Solve for x
    x = 11,646,902,783.81/116,708.42
  6. Step 6: Final answer
    x = 99,794.88

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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.