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Finding the Fourth Proportional to 90,804.84, 136,201.60 and 43,453.56

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Solution

The fourth proportional to 90,804.84, 136,201.60 and 43,453.56 is: 65,177.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804.84 : 136,201.60 = 43,453.56 : x
  2. Step 2: Convert to fraction form
    90,804.84/136,201.60 = 43,453.56/x
  3. Step 3: Cross multiply
    90,804.84x = 136,201.60 × 43,453.56
  4. Step 4: Simplify right side
    90,804.84x = 5,918,444,397.70
  5. Step 5: Solve for x
    x = 5,918,444,397.70/90,804.84
  6. Step 6: Final answer
    x = 65,177.63

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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.