Home / 149,735.20-206,674.32-86,080

Finding the Fourth Proportional to 149,735.20, 206,674.32 and 86,080

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Solution

The fourth proportional to 149,735.20, 206,674.32 and 86,080 is: 118,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,735.20 : 206,674.32 = 86,080 : x
  2. Step 2: Convert to fraction form
    149,735.20/206,674.32 = 86,080/x
  3. Step 3: Cross multiply
    149,735.20x = 206,674.32 × 86,080
  4. Step 4: Simplify right side
    149,735.20x = 17,790,525,465.60
  5. Step 5: Solve for x
    x = 17,790,525,465.60/149,735.20
  6. Step 6: Final answer
    x = 118,813.25

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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.