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Finding the Fourth Proportional to 162,405.54, 224,121.24 and 90,789.48

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Solution

The fourth proportional to 162,405.54, 224,121.24 and 90,789.48 is: 125,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,405.54 : 224,121.24 = 90,789.48 : x
  2. Step 2: Convert to fraction form
    162,405.54/224,121.24 = 90,789.48/x
  3. Step 3: Cross multiply
    162,405.54x = 224,121.24 × 90,789.48
  4. Step 4: Simplify right side
    162,405.54x = 20,347,850,836.56
  5. Step 5: Solve for x
    x = 20,347,850,836.56/162,405.54
  6. Step 6: Final answer
    x = 125,290.37

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1.5x scale

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.