Home / 166,389.76-229,633.68-90,949.60

Finding the Fourth Proportional to 166,389.76, 229,633.68 and 90,949.60

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Solution

The fourth proportional to 166,389.76, 229,633.68 and 90,949.60 is: 125,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,389.76 : 229,633.68 = 90,949.60 : x
  2. Step 2: Convert to fraction form
    166,389.76/229,633.68 = 90,949.60/x
  3. Step 3: Cross multiply
    166,389.76x = 229,633.68 × 90,949.60
  4. Step 4: Simplify right side
    166,389.76x = 20,885,091,342.53
  5. Step 5: Solve for x
    x = 20,885,091,342.53/166,389.76
  6. Step 6: Final answer
    x = 125,519.09

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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.