Home / 138,467.56-191,085.42-74,805.37

Finding the Fourth Proportional to 138,467.56, 191,085.42 and 74,805.37

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Solution

The fourth proportional to 138,467.56, 191,085.42 and 74,805.37 is: 103,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,467.56 : 191,085.42 = 74,805.37 : x
  2. Step 2: Convert to fraction form
    138,467.56/191,085.42 = 74,805.37/x
  3. Step 3: Cross multiply
    138,467.56x = 191,085.42 × 74,805.37
  4. Step 4: Simplify right side
    138,467.56x = 14,294,215,544.71
  5. Step 5: Solve for x
    x = 14,294,215,544.71/138,467.56
  6. Step 6: Final answer
    x = 103,231.51

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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.