Home / 216,817.48-325,145.40-74,623

Finding the Fourth Proportional to 216,817.48, 325,145.40 and 74,623

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Solution

The fourth proportional to 216,817.48, 325,145.40 and 74,623 is: 111,906.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,817.48 : 325,145.40 = 74,623 : x
  2. Step 2: Convert to fraction form
    216,817.48/325,145.40 = 74,623/x
  3. Step 3: Cross multiply
    216,817.48x = 325,145.40 × 74,623
  4. Step 4: Simplify right side
    216,817.48x = 24,263,325,184.20
  5. Step 5: Solve for x
    x = 24,263,325,184.20/216,817.48
  6. Step 6: Final answer
    x = 111,906.68

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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.