Home / 149,729.88-206,627.22-86,080.08

Finding the Fourth Proportional to 149,729.88, 206,627.22 and 86,080.08

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Solution

The fourth proportional to 149,729.88, 206,627.22 and 86,080.08 is: 118,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,729.88 : 206,627.22 = 86,080.08 : x
  2. Step 2: Convert to fraction form
    149,729.88/206,627.22 = 86,080.08/x
  3. Step 3: Cross multiply
    149,729.88x = 206,627.22 × 86,080.08
  4. Step 4: Simplify right side
    149,729.88x = 17,786,487,627.78
  5. Step 5: Solve for x
    x = 17,786,487,627.78/149,729.88
  6. Step 6: Final answer
    x = 118,790.50

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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.