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Finding the Fourth Proportional to 133,068.57, 199,627.16 and 80,415.33

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Solution

The fourth proportional to 133,068.57, 199,627.16 and 80,415.33 is: 120,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.57 : 199,627.16 = 80,415.33 : x
  2. Step 2: Convert to fraction form
    133,068.57/199,627.16 = 80,415.33/x
  3. Step 3: Cross multiply
    133,068.57x = 199,627.16 × 80,415.33
  4. Step 4: Simplify right side
    133,068.57x = 16,053,083,546.29
  5. Step 5: Solve for x
    x = 16,053,083,546.29/133,068.57
  6. Step 6: Final answer
    x = 120,637.68

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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.