Home / 166,440.88-229,688.40-90,989.36

Finding the Fourth Proportional to 166,440.88, 229,688.40 and 90,989.36

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Solution

The fourth proportional to 166,440.88, 229,688.40 and 90,989.36 is: 125,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,440.88 : 229,688.40 = 90,989.36 : x
  2. Step 2: Convert to fraction form
    166,440.88/229,688.40 = 90,989.36/x
  3. Step 3: Cross multiply
    166,440.88x = 229,688.40 × 90,989.36
  4. Step 4: Simplify right side
    166,440.88x = 20,899,200,515.42
  5. Step 5: Solve for x
    x = 20,899,200,515.42/166,440.88
  6. Step 6: Final answer
    x = 125,565.31

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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.