Home / 149,013.86-206,180.63-129,933.39

Finding the Fourth Proportional to 149,013.86, 206,180.63 and 129,933.39

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Solution

The fourth proportional to 149,013.86, 206,180.63 and 129,933.39 is: 179,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,013.86 : 206,180.63 = 129,933.39 : x
  2. Step 2: Convert to fraction form
    149,013.86/206,180.63 = 129,933.39/x
  3. Step 3: Cross multiply
    149,013.86x = 206,180.63 × 129,933.39
  4. Step 4: Simplify right side
    149,013.86x = 26,789,747,558.57
  5. Step 5: Solve for x
    x = 26,789,747,558.57/149,013.86
  6. Step 6: Final answer
    x = 179,780.25

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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.