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Finding the Fourth Proportional to 166,574.40, 229,870.80 and 91,122

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Solution

The fourth proportional to 166,574.40, 229,870.80 and 91,122 is: 125,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,574.40 : 229,870.80 = 91,122 : x
  2. Step 2: Convert to fraction form
    166,574.40/229,870.80 = 91,122/x
  3. Step 3: Cross multiply
    166,574.40x = 229,870.80 × 91,122
  4. Step 4: Simplify right side
    166,574.40x = 20,946,287,037.60
  5. Step 5: Solve for x
    x = 20,946,287,037.60/166,574.40
  6. Step 6: Final answer
    x = 125,747.34

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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.