Home / 166,651.50-229,979.07-91,200

Finding the Fourth Proportional to 166,651.50, 229,979.07 and 91,200

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Solution

The fourth proportional to 166,651.50, 229,979.07 and 91,200 is: 125,856

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,651.50 : 229,979.07 = 91,200 : x
  2. Step 2: Convert to fraction form
    166,651.50/229,979.07 = 91,200/x
  3. Step 3: Cross multiply
    166,651.50x = 229,979.07 × 91,200
  4. Step 4: Simplify right side
    166,651.50x = 20,974,091,184
  5. Step 5: Solve for x
    x = 20,974,091,184/166,651.50
  6. Step 6: Final answer
    x = 125,856

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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.