Home / 166,772.70-230,146.37-90,291.78

Finding the Fourth Proportional to 166,772.70, 230,146.37 and 90,291.78

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Solution

The fourth proportional to 166,772.70, 230,146.37 and 90,291.78 is: 124,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,772.70 : 230,146.37 = 90,291.78 : x
  2. Step 2: Convert to fraction form
    166,772.70/230,146.37 = 90,291.78/x
  3. Step 3: Cross multiply
    166,772.70x = 230,146.37 × 90,291.78
  4. Step 4: Simplify right side
    166,772.70x = 20,780,323,805.65
  5. Step 5: Solve for x
    x = 20,780,323,805.65/166,772.70
  6. Step 6: Final answer
    x = 124,602.67

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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.