Home / 149,747.39-206,649.81-81,764.15

Finding the Fourth Proportional to 149,747.39, 206,649.81 and 81,764.15

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Solution

The fourth proportional to 149,747.39, 206,649.81 and 81,764.15 is: 112,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.39 : 206,649.81 = 81,764.15 : x
  2. Step 2: Convert to fraction form
    149,747.39/206,649.81 = 81,764.15/x
  3. Step 3: Cross multiply
    149,747.39x = 206,649.81 × 81,764.15
  4. Step 4: Simplify right side
    149,747.39x = 16,896,546,062.31
  5. Step 5: Solve for x
    x = 16,896,546,062.31/149,747.39
  6. Step 6: Final answer
    x = 112,833.66

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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.