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Finding the Fourth Proportional to 118,999.60, 164,217.60 and 65,284.48

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Solution

The fourth proportional to 118,999.60, 164,217.60 and 65,284.48 is: 90,091.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,999.60 : 164,217.60 = 65,284.48 : x
  2. Step 2: Convert to fraction form
    118,999.60/164,217.60 = 65,284.48/x
  3. Step 3: Cross multiply
    118,999.60x = 164,217.60 × 65,284.48
  4. Step 4: Simplify right side
    118,999.60x = 10,720,860,622.85
  5. Step 5: Solve for x
    x = 10,720,860,622.85/118,999.60
  6. Step 6: Final answer
    x = 90,091.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.