Home / 166,134.42-229,267.89-90,681.30

Finding the Fourth Proportional to 166,134.42, 229,267.89 and 90,681.30

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Solution

The fourth proportional to 166,134.42, 229,267.89 and 90,681.30 is: 125,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,134.42 : 229,267.89 = 90,681.30 : x
  2. Step 2: Convert to fraction form
    166,134.42/229,267.89 = 90,681.30/x
  3. Step 3: Cross multiply
    166,134.42x = 229,267.89 × 90,681.30
  4. Step 4: Simplify right side
    166,134.42x = 20,790,310,313.46
  5. Step 5: Solve for x
    x = 20,790,310,313.46/166,134.42
  6. Step 6: Final answer
    x = 125,141.50

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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.