Home / 166,623.81-229,939.91-90,142.67

Finding the Fourth Proportional to 166,623.81, 229,939.91 and 90,142.67

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Solution

The fourth proportional to 166,623.81, 229,939.91 and 90,142.67 is: 124,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,623.81 : 229,939.91 = 90,142.67 : x
  2. Step 2: Convert to fraction form
    166,623.81/229,939.91 = 90,142.67/x
  3. Step 3: Cross multiply
    166,623.81x = 229,939.91 × 90,142.67
  4. Step 4: Simplify right side
    166,623.81x = 20,727,395,826.55
  5. Step 5: Solve for x
    x = 20,727,395,826.55/166,623.81
  6. Step 6: Final answer
    x = 124,396.36

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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.