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Finding the Fourth Proportional to 148,636.88, 205,105.32 and 88,197.12

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Solution

The fourth proportional to 148,636.88, 205,105.32 and 88,197.12 is: 121,703.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,636.88 : 205,105.32 = 88,197.12 : x
  2. Step 2: Convert to fraction form
    148,636.88/205,105.32 = 88,197.12/x
  3. Step 3: Cross multiply
    148,636.88x = 205,105.32 × 88,197.12
  4. Step 4: Simplify right side
    148,636.88x = 18,089,698,520.68
  5. Step 5: Solve for x
    x = 18,089,698,520.68/148,636.88
  6. Step 6: Final answer
    x = 121,703.97

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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.