Home / 137,934.50-190,343.53-80,579.13

Finding the Fourth Proportional to 137,934.50, 190,343.53 and 80,579.13

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Solution

The fourth proportional to 137,934.50, 190,343.53 and 80,579.13 is: 111,195.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,934.50 : 190,343.53 = 80,579.13 : x
  2. Step 2: Convert to fraction form
    137,934.50/190,343.53 = 80,579.13/x
  3. Step 3: Cross multiply
    137,934.50x = 190,343.53 × 80,579.13
  4. Step 4: Simplify right side
    137,934.50x = 15,337,715,847.08
  5. Step 5: Solve for x
    x = 15,337,715,847.08/137,934.50
  6. Step 6: Final answer
    x = 111,195.65

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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.