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Finding the Fourth Proportional to 166,722.92, 230,077.60 and 90,242

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Solution

The fourth proportional to 166,722.92, 230,077.60 and 90,242 is: 124,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,722.92 : 230,077.60 = 90,242 : x
  2. Step 2: Convert to fraction form
    166,722.92/230,077.60 = 90,242/x
  3. Step 3: Cross multiply
    166,722.92x = 230,077.60 × 90,242
  4. Step 4: Simplify right side
    166,722.92x = 20,762,662,779.20
  5. Step 5: Solve for x
    x = 20,762,662,779.20/166,722.92
  6. Step 6: Final answer
    x = 124,533.94

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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.