Home / 140,788.13-194,257.37-83,445.39

Finding the Fourth Proportional to 140,788.13, 194,257.37 and 83,445.39

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Solution

The fourth proportional to 140,788.13, 194,257.37 and 83,445.39 is: 115,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,788.13 : 194,257.37 = 83,445.39 : x
  2. Step 2: Convert to fraction form
    140,788.13/194,257.37 = 83,445.39/x
  3. Step 3: Cross multiply
    140,788.13x = 194,257.37 × 83,445.39
  4. Step 4: Simplify right side
    140,788.13x = 16,209,882,208.64
  5. Step 5: Solve for x
    x = 16,209,882,208.64/140,788.13
  6. Step 6: Final answer
    x = 115,136.71

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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.