Home / 216,813.48-325,139.42-74,619

Finding the Fourth Proportional to 216,813.48, 325,139.42 and 74,619

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Solution

The fourth proportional to 216,813.48, 325,139.42 and 74,619 is: 111,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,813.48 : 325,139.42 = 74,619 : x
  2. Step 2: Convert to fraction form
    216,813.48/325,139.42 = 74,619/x
  3. Step 3: Cross multiply
    216,813.48x = 325,139.42 × 74,619
  4. Step 4: Simplify right side
    216,813.48x = 24,261,578,380.98
  5. Step 5: Solve for x
    x = 24,261,578,380.98/216,813.48
  6. Step 6: Final answer
    x = 111,900.69

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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.