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Finding the Fourth Proportional to 166,455, 229,713.57 and 91,008.36

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Solution

The fourth proportional to 166,455, 229,713.57 and 91,008.36 is: 125,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,455 : 229,713.57 = 91,008.36 : x
  2. Step 2: Convert to fraction form
    166,455/229,713.57 = 91,008.36/x
  3. Step 3: Cross multiply
    166,455x = 229,713.57 × 91,008.36
  4. Step 4: Simplify right side
    166,455x = 20,905,855,275.45
  5. Step 5: Solve for x
    x = 20,905,855,275.45/166,455
  6. Step 6: Final answer
    x = 125,594.64

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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.