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Finding the Fourth Proportional to 166,088, 229,203.96 and 90,636.68

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Solution

The fourth proportional to 166,088, 229,203.96 and 90,636.68 is: 125,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,088 : 229,203.96 = 90,636.68 : x
  2. Step 2: Convert to fraction form
    166,088/229,203.96 = 90,636.68/x
  3. Step 3: Cross multiply
    166,088x = 229,203.96 × 90,636.68
  4. Step 4: Simplify right side
    166,088x = 20,774,285,977.25
  5. Step 5: Solve for x
    x = 20,774,285,977.25/166,088
  6. Step 6: Final answer
    x = 125,079.99

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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.