Home / 137,933.40-190,327.68-79,788.36

Finding the Fourth Proportional to 137,933.40, 190,327.68 and 79,788.36

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Solution

The fourth proportional to 137,933.40, 190,327.68 and 79,788.36 is: 110,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,933.40 : 190,327.68 = 79,788.36 : x
  2. Step 2: Convert to fraction form
    137,933.40/190,327.68 = 79,788.36/x
  3. Step 3: Cross multiply
    137,933.40x = 190,327.68 × 79,788.36
  4. Step 4: Simplify right side
    137,933.40x = 15,185,933,449.80
  5. Step 5: Solve for x
    x = 15,185,933,449.80/137,933.40
  6. Step 6: Final answer
    x = 110,096.13

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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.