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Finding the Fourth Proportional to 88,906.40, 133,035.60 and 65,578.40

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Solution

The fourth proportional to 88,906.40, 133,035.60 and 65,578.40 is: 98,128.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,906.40 : 133,035.60 = 65,578.40 : x
  2. Step 2: Convert to fraction form
    88,906.40/133,035.60 = 65,578.40/x
  3. Step 3: Cross multiply
    88,906.40x = 133,035.60 × 65,578.40
  4. Step 4: Simplify right side
    88,906.40x = 8,724,261,791.04
  5. Step 5: Solve for x
    x = 8,724,261,791.04/88,906.40
  6. Step 6: Final answer
    x = 98,128.61

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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.