Home / 144,288.66-216,436.68-68,369.38

Finding the Fourth Proportional to 144,288.66, 216,436.68 and 68,369.38

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Solution

The fourth proportional to 144,288.66, 216,436.68 and 68,369.38 is: 102,555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,288.66 : 216,436.68 = 68,369.38 : x
  2. Step 2: Convert to fraction form
    144,288.66/216,436.68 = 68,369.38/x
  3. Step 3: Cross multiply
    144,288.66x = 216,436.68 × 68,369.38
  4. Step 4: Simplify right side
    144,288.66x = 14,797,641,620.86
  5. Step 5: Solve for x
    x = 14,797,641,620.86/144,288.66
  6. Step 6: Final answer
    x = 102,555.82

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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.