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Finding the Fourth Proportional to 89,296.40, 133,944.60 and 82,006.40

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Solution

The fourth proportional to 89,296.40, 133,944.60 and 82,006.40 is: 123,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,296.40 : 133,944.60 = 82,006.40 : x
  2. Step 2: Convert to fraction form
    89,296.40/133,944.60 = 82,006.40/x
  3. Step 3: Cross multiply
    89,296.40x = 133,944.60 × 82,006.40
  4. Step 4: Simplify right side
    89,296.40x = 10,984,314,445.44
  5. Step 5: Solve for x
    x = 10,984,314,445.44/89,296.40
  6. Step 6: Final answer
    x = 123,009.60

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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.