Home / 166,231.50-229,400.73-90,780

Finding the Fourth Proportional to 166,231.50, 229,400.73 and 90,780

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Solution

The fourth proportional to 166,231.50, 229,400.73 and 90,780 is: 125,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,231.50 : 229,400.73 = 90,780 : x
  2. Step 2: Convert to fraction form
    166,231.50/229,400.73 = 90,780/x
  3. Step 3: Cross multiply
    166,231.50x = 229,400.73 × 90,780
  4. Step 4: Simplify right side
    166,231.50x = 20,824,998,269.40
  5. Step 5: Solve for x
    x = 20,824,998,269.40/166,231.50
  6. Step 6: Final answer
    x = 125,277.09

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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.