Home / 166,490.84-229,758.12-91,039.28

Finding the Fourth Proportional to 166,490.84, 229,758.12 and 91,039.28

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Solution

The fourth proportional to 166,490.84, 229,758.12 and 91,039.28 is: 125,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,490.84 : 229,758.12 = 91,039.28 : x
  2. Step 2: Convert to fraction form
    166,490.84/229,758.12 = 91,039.28/x
  3. Step 3: Cross multiply
    166,490.84x = 229,758.12 × 91,039.28
  4. Step 4: Simplify right side
    166,490.84x = 20,917,013,818.95
  5. Step 5: Solve for x
    x = 20,917,013,818.95/166,490.84
  6. Step 6: Final answer
    x = 125,634.62

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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.