Home / 208,564.68-312,846.86-75,413.72

Finding the Fourth Proportional to 208,564.68, 312,846.86 and 75,413.72

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Solution

The fourth proportional to 208,564.68, 312,846.86 and 75,413.72 is: 113,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,564.68 : 312,846.86 = 75,413.72 : x
  2. Step 2: Convert to fraction form
    208,564.68/312,846.86 = 75,413.72/x
  3. Step 3: Cross multiply
    208,564.68x = 312,846.86 × 75,413.72
  4. Step 4: Simplify right side
    208,564.68x = 23,592,945,502.92
  5. Step 5: Solve for x
    x = 23,592,945,502.92/208,564.68
  6. Step 6: Final answer
    x = 113,120.52

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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.