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Finding the Fourth Proportional to 166,444.89, 229,693.95 and 90,993.39

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Solution

The fourth proportional to 166,444.89, 229,693.95 and 90,993.39 is: 125,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,444.89 : 229,693.95 = 90,993.39 : x
  2. Step 2: Convert to fraction form
    166,444.89/229,693.95 = 90,993.39/x
  3. Step 3: Cross multiply
    166,444.89x = 229,693.95 × 90,993.39
  4. Step 4: Simplify right side
    166,444.89x = 20,900,631,172.99
  5. Step 5: Solve for x
    x = 20,900,631,172.99/166,444.89
  6. Step 6: Final answer
    x = 125,570.88

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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.