Home / 140,788.13-194,287.61-84,199.50

Finding the Fourth Proportional to 140,788.13, 194,287.61 and 84,199.50

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Solution

The fourth proportional to 140,788.13, 194,287.61 and 84,199.50 is: 116,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,788.13 : 194,287.61 = 84,199.50 : x
  2. Step 2: Convert to fraction form
    140,788.13/194,287.61 = 84,199.50/x
  3. Step 3: Cross multiply
    140,788.13x = 194,287.61 × 84,199.50
  4. Step 4: Simplify right side
    140,788.13x = 16,358,919,828.69
  5. Step 5: Solve for x
    x = 16,358,919,828.69/140,788.13
  6. Step 6: Final answer
    x = 116,195.31

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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.