Home / 138,733.44-191,452.48-75,071.92

Finding the Fourth Proportional to 138,733.44, 191,452.48 and 75,071.92

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Solution

The fourth proportional to 138,733.44, 191,452.48 and 75,071.92 is: 103,599.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,733.44 : 191,452.48 = 75,071.92 : x
  2. Step 2: Convert to fraction form
    138,733.44/191,452.48 = 75,071.92/x
  3. Step 3: Cross multiply
    138,733.44x = 191,452.48 × 75,071.92
  4. Step 4: Simplify right side
    138,733.44x = 14,372,705,262.36
  5. Step 5: Solve for x
    x = 14,372,705,262.36/138,733.44
  6. Step 6: Final answer
    x = 103,599.43

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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.