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Finding the Fourth Proportional to 149,676.77, 206,548.79 and 89,216.25

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Solution

The fourth proportional to 149,676.77, 206,548.79 and 89,216.25 is: 123,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,676.77 : 206,548.79 = 89,216.25 : x
  2. Step 2: Convert to fraction form
    149,676.77/206,548.79 = 89,216.25/x
  3. Step 3: Cross multiply
    149,676.77x = 206,548.79 × 89,216.25
  4. Step 4: Simplify right side
    149,676.77x = 18,427,508,039.76
  5. Step 5: Solve for x
    x = 18,427,508,039.76/149,676.77
  6. Step 6: Final answer
    x = 123,115.35

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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.