Home / 138,826.44-191,580.74-75,164.84

Finding the Fourth Proportional to 138,826.44, 191,580.74 and 75,164.84

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Solution

The fourth proportional to 138,826.44, 191,580.74 and 75,164.84 is: 103,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,826.44 : 191,580.74 = 75,164.84 : x
  2. Step 2: Convert to fraction form
    138,826.44/191,580.74 = 75,164.84/x
  3. Step 3: Cross multiply
    138,826.44x = 191,580.74 × 75,164.84
  4. Step 4: Simplify right side
    138,826.44x = 14,400,135,669.18
  5. Step 5: Solve for x
    x = 14,400,135,669.18/138,826.44
  6. Step 6: Final answer
    x = 103,727.62

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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.