Home / 149,747.32-206,649.74-81,764.08

Finding the Fourth Proportional to 149,747.32, 206,649.74 and 81,764.08

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Solution

The fourth proportional to 149,747.32, 206,649.74 and 81,764.08 is: 112,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.32 : 206,649.74 = 81,764.08 : x
  2. Step 2: Convert to fraction form
    149,747.32/206,649.74 = 81,764.08/x
  3. Step 3: Cross multiply
    149,747.32x = 206,649.74 × 81,764.08
  4. Step 4: Simplify right side
    149,747.32x = 16,896,525,873.34
  5. Step 5: Solve for x
    x = 16,896,525,873.34/149,747.32
  6. Step 6: Final answer
    x = 112,833.58

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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.