Home / 190,964.52-286,453.98-72,613.80

Finding the Fourth Proportional to 190,964.52, 286,453.98 and 72,613.80

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Solution

The fourth proportional to 190,964.52, 286,453.98 and 72,613.80 is: 108,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,964.52 : 286,453.98 = 72,613.80 : x
  2. Step 2: Convert to fraction form
    190,964.52/286,453.98 = 72,613.80/x
  3. Step 3: Cross multiply
    190,964.52x = 286,453.98 × 72,613.80
  4. Step 4: Simplify right side
    190,964.52x = 20,800,512,012.92
  5. Step 5: Solve for x
    x = 20,800,512,012.92/190,964.52
  6. Step 6: Final answer
    x = 108,923.44

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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.