Home / 146,039.09-218,980.26-74,932.43

Finding the Fourth Proportional to 146,039.09, 218,980.26 and 74,932.43

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Solution

The fourth proportional to 146,039.09, 218,980.26 and 74,932.43 is: 112,358.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,039.09 : 218,980.26 = 74,932.43 : x
  2. Step 2: Convert to fraction form
    146,039.09/218,980.26 = 74,932.43/x
  3. Step 3: Cross multiply
    146,039.09x = 218,980.26 × 74,932.43
  4. Step 4: Simplify right side
    146,039.09x = 16,408,721,908.93
  5. Step 5: Solve for x
    x = 16,408,721,908.93/146,039.09
  6. Step 6: Final answer
    x = 112,358.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.