Home / 149,448.44-206,239.77-89,021.63

Finding the Fourth Proportional to 149,448.44, 206,239.77 and 89,021.63

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Solution

The fourth proportional to 149,448.44, 206,239.77 and 89,021.63 is: 122,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,448.44 : 206,239.77 = 89,021.63 : x
  2. Step 2: Convert to fraction form
    149,448.44/206,239.77 = 89,021.63/x
  3. Step 3: Cross multiply
    149,448.44x = 206,239.77 × 89,021.63
  4. Step 4: Simplify right side
    149,448.44x = 18,359,801,011.82
  5. Step 5: Solve for x
    x = 18,359,801,011.82/149,448.44
  6. Step 6: Final answer
    x = 122,850.40

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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.