Home / 149,833.88-206,777.05-86,171.74

Finding the Fourth Proportional to 149,833.88, 206,777.05 and 86,171.74

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Solution

The fourth proportional to 149,833.88, 206,777.05 and 86,171.74 is: 118,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,833.88 : 206,777.05 = 86,171.74 : x
  2. Step 2: Convert to fraction form
    149,833.88/206,777.05 = 86,171.74/x
  3. Step 3: Cross multiply
    149,833.88x = 206,777.05 × 86,171.74
  4. Step 4: Simplify right side
    149,833.88x = 17,818,337,156.68
  5. Step 5: Solve for x
    x = 17,818,337,156.68/149,833.88
  6. Step 6: Final answer
    x = 118,920.61

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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.