Home / 149,758.04-206,665.08-82,690.04

Finding the Fourth Proportional to 149,758.04, 206,665.08 and 82,690.04

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Solution

The fourth proportional to 149,758.04, 206,665.08 and 82,690.04 is: 114,111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,758.04 : 206,665.08 = 82,690.04 : x
  2. Step 2: Convert to fraction form
    149,758.04/206,665.08 = 82,690.04/x
  3. Step 3: Cross multiply
    149,758.04x = 206,665.08 × 82,690.04
  4. Step 4: Simplify right side
    149,758.04x = 17,089,143,731.80
  5. Step 5: Solve for x
    x = 17,089,143,731.80/149,758.04
  6. Step 6: Final answer
    x = 114,111.69

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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.