Home / 129,528.04-194,291.79-40,789.30

Finding the Fourth Proportional to 129,528.04, 194,291.79 and 40,789.30

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Solution

The fourth proportional to 129,528.04, 194,291.79 and 40,789.30 is: 61,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,528.04 : 194,291.79 = 40,789.30 : x
  2. Step 2: Convert to fraction form
    129,528.04/194,291.79 = 40,789.30/x
  3. Step 3: Cross multiply
    129,528.04x = 194,291.79 × 40,789.30
  4. Step 4: Simplify right side
    129,528.04x = 7,925,026,109.85
  5. Step 5: Solve for x
    x = 7,925,026,109.85/129,528.04
  6. Step 6: Final answer
    x = 61,183.86

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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.