Home / 139,517.12-209,292.96-50,812.40

Finding the Fourth Proportional to 139,517.12, 209,292.96 and 50,812.40

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Solution

The fourth proportional to 139,517.12, 209,292.96 and 50,812.40 is: 76,224.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.12 : 209,292.96 = 50,812.40 : x
  2. Step 2: Convert to fraction form
    139,517.12/209,292.96 = 50,812.40/x
  3. Step 3: Cross multiply
    139,517.12x = 209,292.96 × 50,812.40
  4. Step 4: Simplify right side
    139,517.12x = 10,634,677,600.70
  5. Step 5: Solve for x
    x = 10,634,677,600.70/139,517.12
  6. Step 6: Final answer
    x = 76,224.89

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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.