Home / 165,178.85-247,768.28-71,684.60

Finding the Fourth Proportional to 165,178.85, 247,768.28 and 71,684.60

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Solution

The fourth proportional to 165,178.85, 247,768.28 and 71,684.60 is: 107,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,178.85 : 247,768.28 = 71,684.60 : x
  2. Step 2: Convert to fraction form
    165,178.85/247,768.28 = 71,684.60/x
  3. Step 3: Cross multiply
    165,178.85x = 247,768.28 × 71,684.60
  4. Step 4: Simplify right side
    165,178.85x = 17,761,168,447.22
  5. Step 5: Solve for x
    x = 17,761,168,447.22/165,178.85
  6. Step 6: Final answer
    x = 107,526.90

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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.