Home / 138,253.62-190,793.56-77,826.44

Finding the Fourth Proportional to 138,253.62, 190,793.56 and 77,826.44

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Solution

The fourth proportional to 138,253.62, 190,793.56 and 77,826.44 is: 107,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,253.62 : 190,793.56 = 77,826.44 : x
  2. Step 2: Convert to fraction form
    138,253.62/190,793.56 = 77,826.44/x
  3. Step 3: Cross multiply
    138,253.62x = 190,793.56 × 77,826.44
  4. Step 4: Simplify right side
    138,253.62x = 14,848,783,549.73
  5. Step 5: Solve for x
    x = 14,848,783,549.73/138,253.62
  6. Step 6: Final answer
    x = 107,402.49

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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.