Home / 149,650.70-206,553.30-86,025.40

Finding the Fourth Proportional to 149,650.70, 206,553.30 and 86,025.40

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Solution

The fourth proportional to 149,650.70, 206,553.30 and 86,025.40 is: 118,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,650.70 : 206,553.30 = 86,025.40 : x
  2. Step 2: Convert to fraction form
    149,650.70/206,553.30 = 86,025.40/x
  3. Step 3: Cross multiply
    149,650.70x = 206,553.30 × 86,025.40
  4. Step 4: Simplify right side
    149,650.70x = 17,768,830,253.82
  5. Step 5: Solve for x
    x = 17,768,830,253.82/149,650.70
  6. Step 6: Final answer
    x = 118,735.36

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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.