Home / 165,180.85-247,771.28-71,686.60

Finding the Fourth Proportional to 165,180.85, 247,771.28 and 71,686.60

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Solution

The fourth proportional to 165,180.85, 247,771.28 and 71,686.60 is: 107,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,180.85 : 247,771.28 = 71,686.60 : x
  2. Step 2: Convert to fraction form
    165,180.85/247,771.28 = 71,686.60/x
  3. Step 3: Cross multiply
    165,180.85x = 247,771.28 × 71,686.60
  4. Step 4: Simplify right side
    165,180.85x = 17,761,880,640.85
  5. Step 5: Solve for x
    x = 17,761,880,640.85/165,180.85
  6. Step 6: Final answer
    x = 107,529.90

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1.5x scale

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.