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Finding the Fourth Proportional to 166,322.76, 229,525 and 90,871.80

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Solution

The fourth proportional to 166,322.76, 229,525 and 90,871.80 is: 125,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,322.76 : 229,525 = 90,871.80 : x
  2. Step 2: Convert to fraction form
    166,322.76/229,525 = 90,871.80/x
  3. Step 3: Cross multiply
    166,322.76x = 229,525 × 90,871.80
  4. Step 4: Simplify right side
    166,322.76x = 20,857,349,895
  5. Step 5: Solve for x
    x = 20,857,349,895/166,322.76
  6. Step 6: Final answer
    x = 125,402.86

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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.