Home / 149,880.24-206,876.43-86,238.54

Finding the Fourth Proportional to 149,880.24, 206,876.43 and 86,238.54

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Solution

The fourth proportional to 149,880.24, 206,876.43 and 86,238.54 is: 119,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,880.24 : 206,876.43 = 86,238.54 : x
  2. Step 2: Convert to fraction form
    149,880.24/206,876.43 = 86,238.54/x
  3. Step 3: Cross multiply
    149,880.24x = 206,876.43 × 86,238.54
  4. Step 4: Simplify right side
    149,880.24x = 17,840,721,283.61
  5. Step 5: Solve for x
    x = 17,840,721,283.61/149,880.24
  6. Step 6: Final answer
    x = 119,033.18

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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.