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Finding the Fourth Proportional to 166,690, 230,030.44 and 90,207.44

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Solution

The fourth proportional to 166,690, 230,030.44 and 90,207.44 is: 124,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,690 : 230,030.44 = 90,207.44 : x
  2. Step 2: Convert to fraction form
    166,690/230,030.44 = 90,207.44/x
  3. Step 3: Cross multiply
    166,690x = 230,030.44 × 90,207.44
  4. Step 4: Simplify right side
    166,690x = 20,750,457,114.47
  5. Step 5: Solve for x
    x = 20,750,457,114.47/166,690
  6. Step 6: Final answer
    x = 124,485.31

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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.