Home / 141,149.10-194,784.88-76,619.60

Finding the Fourth Proportional to 141,149.10, 194,784.88 and 76,619.60

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Solution

The fourth proportional to 141,149.10, 194,784.88 and 76,619.60 is: 105,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,149.10 : 194,784.88 = 76,619.60 : x
  2. Step 2: Convert to fraction form
    141,149.10/194,784.88 = 76,619.60/x
  3. Step 3: Cross multiply
    141,149.10x = 194,784.88 × 76,619.60
  4. Step 4: Simplify right side
    141,149.10x = 14,924,339,591.65
  5. Step 5: Solve for x
    x = 14,924,339,591.65/141,149.10
  6. Step 6: Final answer
    x = 105,734.57

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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.