Home / 166,439.81-229,687.85-90,988.31

Finding the Fourth Proportional to 166,439.81, 229,687.85 and 90,988.31

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Solution

The fourth proportional to 166,439.81, 229,687.85 and 90,988.31 is: 125,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,439.81 : 229,687.85 = 90,988.31 : x
  2. Step 2: Convert to fraction form
    166,439.81/229,687.85 = 90,988.31/x
  3. Step 3: Cross multiply
    166,439.81x = 229,687.85 × 90,988.31
  4. Step 4: Simplify right side
    166,439.81x = 20,898,910,100.72
  5. Step 5: Solve for x
    x = 20,898,910,100.72/166,439.81
  6. Step 6: Final answer
    x = 125,564.37

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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.