Home / 149,288.80-206,060.88-98,338.72

Finding the Fourth Proportional to 149,288.80, 206,060.88 and 98,338.72

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Solution

The fourth proportional to 149,288.80, 206,060.88 and 98,338.72 is: 135,735.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,288.80 : 206,060.88 = 98,338.72 : x
  2. Step 2: Convert to fraction form
    149,288.80/206,060.88 = 98,338.72/x
  3. Step 3: Cross multiply
    149,288.80x = 206,060.88 × 98,338.72
  4. Step 4: Simplify right side
    149,288.80x = 20,263,763,181.27
  5. Step 5: Solve for x
    x = 20,263,763,181.27/149,288.80
  6. Step 6: Final answer
    x = 135,735.32

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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.