Home / 421,836.48-632,747.40-106,286.40

Finding the Fourth Proportional to 421,836.48, 632,747.40 and 106,286.40

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Solution

The fourth proportional to 421,836.48, 632,747.40 and 106,286.40 is: 159,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,836.48 : 632,747.40 = 106,286.40 : x
  2. Step 2: Convert to fraction form
    421,836.48/632,747.40 = 106,286.40/x
  3. Step 3: Cross multiply
    421,836.48x = 632,747.40 × 106,286.40
  4. Step 4: Simplify right side
    421,836.48x = 67,252,443,255.36
  5. Step 5: Solve for x
    x = 67,252,443,255.36/421,836.48
  6. Step 6: Final answer
    x = 159,427.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.