Home / 149,498.05-206,357.30-89,087.64

Finding the Fourth Proportional to 149,498.05, 206,357.30 and 89,087.64

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Solution

The fourth proportional to 149,498.05, 206,357.30 and 89,087.64 is: 122,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,498.05 : 206,357.30 = 89,087.64 : x
  2. Step 2: Convert to fraction form
    149,498.05/206,357.30 = 89,087.64/x
  3. Step 3: Cross multiply
    149,498.05x = 206,357.30 × 89,087.64
  4. Step 4: Simplify right side
    149,498.05x = 18,383,884,853.77
  5. Step 5: Solve for x
    x = 18,383,884,853.77/149,498.05
  6. Step 6: Final answer
    x = 122,970.73

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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.