Home / 139,415.28-209,125.20-50,613.36

Finding the Fourth Proportional to 139,415.28, 209,125.20 and 50,613.36

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Solution

The fourth proportional to 139,415.28, 209,125.20 and 50,613.36 is: 75,920.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,415.28 : 209,125.20 = 50,613.36 : x
  2. Step 2: Convert to fraction form
    139,415.28/209,125.20 = 50,613.36/x
  3. Step 3: Cross multiply
    139,415.28x = 209,125.20 × 50,613.36
  4. Step 4: Simplify right side
    139,415.28x = 10,584,529,032.67
  5. Step 5: Solve for x
    x = 10,584,529,032.67/139,415.28
  6. Step 6: Final answer
    x = 75,920.87

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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.