Home / 166,690.20-230,033.21-90,209.31

Finding the Fourth Proportional to 166,690.20, 230,033.21 and 90,209.31

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Solution

The fourth proportional to 166,690.20, 230,033.21 and 90,209.31 is: 124,489.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,690.20 : 230,033.21 = 90,209.31 : x
  2. Step 2: Convert to fraction form
    166,690.20/230,033.21 = 90,209.31/x
  3. Step 3: Cross multiply
    166,690.20x = 230,033.21 × 90,209.31
  4. Step 4: Simplify right side
    166,690.20x = 20,751,136,860.82
  5. Step 5: Solve for x
    x = 20,751,136,860.82/166,690.20
  6. Step 6: Final answer
    x = 124,489.24

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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.