Home / 149,629.96-206,763.06-142,340.68

Finding the Fourth Proportional to 149,629.96, 206,763.06 and 142,340.68

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Solution

The fourth proportional to 149,629.96, 206,763.06 and 142,340.68 is: 196,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,629.96 : 206,763.06 = 142,340.68 : x
  2. Step 2: Convert to fraction form
    149,629.96/206,763.06 = 142,340.68/x
  3. Step 3: Cross multiply
    149,629.96x = 206,763.06 × 142,340.68
  4. Step 4: Simplify right side
    149,629.96x = 29,430,794,559.28
  5. Step 5: Solve for x
    x = 29,430,794,559.28/149,629.96
  6. Step 6: Final answer
    x = 196,690.52

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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.