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Finding the Fourth Proportional to 165,609.60, 248,446.80 and 70,839.60

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Solution

The fourth proportional to 165,609.60, 248,446.80 and 70,839.60 is: 106,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,609.60 : 248,446.80 = 70,839.60 : x
  2. Step 2: Convert to fraction form
    165,609.60/248,446.80 = 70,839.60/x
  3. Step 3: Cross multiply
    165,609.60x = 248,446.80 × 70,839.60
  4. Step 4: Simplify right side
    165,609.60x = 17,599,871,933.28
  5. Step 5: Solve for x
    x = 17,599,871,933.28/165,609.60
  6. Step 6: Final answer
    x = 106,273.26

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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.