Home / 149,976.97-206,990.75-86,302.46

Finding the Fourth Proportional to 149,976.97, 206,990.75 and 86,302.46

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Solution

The fourth proportional to 149,976.97, 206,990.75 and 86,302.46 is: 119,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,976.97 : 206,990.75 = 86,302.46 : x
  2. Step 2: Convert to fraction form
    149,976.97/206,990.75 = 86,302.46/x
  3. Step 3: Cross multiply
    149,976.97x = 206,990.75 × 86,302.46
  4. Step 4: Simplify right side
    149,976.97x = 17,863,811,655.48
  5. Step 5: Solve for x
    x = 17,863,811,655.48/149,976.97
  6. Step 6: Final answer
    x = 119,110.37

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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.