Home / 166,322.40-229,517.76-90,871.20

Finding the Fourth Proportional to 166,322.40, 229,517.76 and 90,871.20

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Solution

The fourth proportional to 166,322.40, 229,517.76 and 90,871.20 is: 125,398.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,322.40 : 229,517.76 = 90,871.20 : x
  2. Step 2: Convert to fraction form
    166,322.40/229,517.76 = 90,871.20/x
  3. Step 3: Cross multiply
    166,322.40x = 229,517.76 × 90,871.20
  4. Step 4: Simplify right side
    166,322.40x = 20,856,554,272.51
  5. Step 5: Solve for x
    x = 20,856,554,272.51/166,322.40
  6. Step 6: Final answer
    x = 125,398.35

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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.