Home / 137,946.99-190,375.65-80,604.90

Finding the Fourth Proportional to 137,946.99, 190,375.65 and 80,604.90

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Solution

The fourth proportional to 137,946.99, 190,375.65 and 80,604.90 is: 111,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,946.99 : 190,375.65 = 80,604.90 : x
  2. Step 2: Convert to fraction form
    137,946.99/190,375.65 = 80,604.90/x
  3. Step 3: Cross multiply
    137,946.99x = 190,375.65 × 80,604.90
  4. Step 4: Simplify right side
    137,946.99x = 15,345,210,230.69
  5. Step 5: Solve for x
    x = 15,345,210,230.69/137,946.99
  6. Step 6: Final answer
    x = 111,239.91

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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.