Home / 138,827.96-191,581.70-75,165.56

Finding the Fourth Proportional to 138,827.96, 191,581.70 and 75,165.56

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Solution

The fourth proportional to 138,827.96, 191,581.70 and 75,165.56 is: 103,727.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,827.96 : 191,581.70 = 75,165.56 : x
  2. Step 2: Convert to fraction form
    138,827.96/191,581.70 = 75,165.56/x
  3. Step 3: Cross multiply
    138,827.96x = 191,581.70 × 75,165.56
  4. Step 4: Simplify right side
    138,827.96x = 14,400,345,766.25
  5. Step 5: Solve for x
    x = 14,400,345,766.25/138,827.96
  6. Step 6: Final answer
    x = 103,727.99

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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.