Home / 138,837.96-191,596.52-75,175.61

Finding the Fourth Proportional to 138,837.96, 191,596.52 and 75,175.61

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Solution

The fourth proportional to 138,837.96, 191,596.52 and 75,175.61 is: 103,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,837.96 : 191,596.52 = 75,175.61 : x
  2. Step 2: Convert to fraction form
    138,837.96/191,596.52 = 75,175.61/x
  3. Step 3: Cross multiply
    138,837.96x = 191,596.52 × 75,175.61
  4. Step 4: Simplify right side
    138,837.96x = 14,403,384,494.83
  5. Step 5: Solve for x
    x = 14,403,384,494.83/138,837.96
  6. Step 6: Final answer
    x = 103,742.41

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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.