Home / 216,815.73-325,142.78-74,621.27

Finding the Fourth Proportional to 216,815.73, 325,142.78 and 74,621.27

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Solution

The fourth proportional to 216,815.73, 325,142.78 and 74,621.27 is: 111,904.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,815.73 : 325,142.78 = 74,621.27 : x
  2. Step 2: Convert to fraction form
    216,815.73/325,142.78 = 74,621.27/x
  3. Step 3: Cross multiply
    216,815.73x = 325,142.78 × 74,621.27
  4. Step 4: Simplify right side
    216,815.73x = 24,262,565,176.11
  5. Step 5: Solve for x
    x = 24,262,565,176.11/216,815.73
  6. Step 6: Final answer
    x = 111,904.08

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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.