Home / 166,438.13-229,684.61-90,986.63

Finding the Fourth Proportional to 166,438.13, 229,684.61 and 90,986.63

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Solution

The fourth proportional to 166,438.13, 229,684.61 and 90,986.63 is: 125,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,438.13 : 229,684.61 = 90,986.63 : x
  2. Step 2: Convert to fraction form
    166,438.13/229,684.61 = 90,986.63/x
  3. Step 3: Cross multiply
    166,438.13x = 229,684.61 × 90,986.63
  4. Step 4: Simplify right side
    166,438.13x = 20,898,227,705.81
  5. Step 5: Solve for x
    x = 20,898,227,705.81/166,438.13
  6. Step 6: Final answer
    x = 125,561.54

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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.