Home / 149,759.66-206,669.34-81,777.12

Finding the Fourth Proportional to 149,759.66, 206,669.34 and 81,777.12

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Solution

The fourth proportional to 149,759.66, 206,669.34 and 81,777.12 is: 112,852.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,759.66 : 206,669.34 = 81,777.12 : x
  2. Step 2: Convert to fraction form
    149,759.66/206,669.34 = 81,777.12/x
  3. Step 3: Cross multiply
    149,759.66x = 206,669.34 × 81,777.12
  4. Step 4: Simplify right side
    149,759.66x = 16,900,823,417.50
  5. Step 5: Solve for x
    x = 16,900,823,417.50/149,759.66
  6. Step 6: Final answer
    x = 112,852.98

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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.