Home / 149,816.61-206,791.25-86,199.21

Finding the Fourth Proportional to 149,816.61, 206,791.25 and 86,199.21

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Solution

The fourth proportional to 149,816.61, 206,791.25 and 86,199.21 is: 118,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,816.61 : 206,791.25 = 86,199.21 : x
  2. Step 2: Convert to fraction form
    149,816.61/206,791.25 = 86,199.21/x
  3. Step 3: Cross multiply
    149,816.61x = 206,791.25 × 86,199.21
  4. Step 4: Simplify right side
    149,816.61x = 17,825,241,953.92
  5. Step 5: Solve for x
    x = 17,825,241,953.92/149,816.61
  6. Step 6: Final answer
    x = 118,980.41

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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.