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Finding the Fourth Proportional to 166,262, 229,441.56 and 90,810.68

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Solution

The fourth proportional to 166,262, 229,441.56 and 90,810.68 is: 125,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,262 : 229,441.56 = 90,810.68 : x
  2. Step 2: Convert to fraction form
    166,262/229,441.56 = 90,810.68/x
  3. Step 3: Cross multiply
    166,262x = 229,441.56 × 90,810.68
  4. Step 4: Simplify right side
    166,262x = 20,835,744,083.86
  5. Step 5: Solve for x
    x = 20,835,744,083.86/166,262
  6. Step 6: Final answer
    x = 125,318.74

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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.