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Finding the Fourth Proportional to 154,662, 213,429.93 and 91,003.92

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Solution

The fourth proportional to 154,662, 213,429.93 and 91,003.92 is: 125,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,662 : 213,429.93 = 91,003.92 : x
  2. Step 2: Convert to fraction form
    154,662/213,429.93 = 91,003.92/x
  3. Step 3: Cross multiply
    154,662x = 213,429.93 × 91,003.92
  4. Step 4: Simplify right side
    154,662x = 19,422,960,275.33
  5. Step 5: Solve for x
    x = 19,422,960,275.33/154,662
  6. Step 6: Final answer
    x = 125,583.27

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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.