Home / 166,690.39-230,033.47-90,209.50

Finding the Fourth Proportional to 166,690.39, 230,033.47 and 90,209.50

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Solution

The fourth proportional to 166,690.39, 230,033.47 and 90,209.50 is: 124,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,690.39 : 230,033.47 = 90,209.50 : x
  2. Step 2: Convert to fraction form
    166,690.39/230,033.47 = 90,209.50/x
  3. Step 3: Cross multiply
    166,690.39x = 230,033.47 × 90,209.50
  4. Step 4: Simplify right side
    166,690.39x = 20,751,202,936.27
  5. Step 5: Solve for x
    x = 20,751,202,936.27/166,690.39
  6. Step 6: Final answer
    x = 124,489.50

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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.