Home / 144,651.30-217,022.85-69,778.14

Finding the Fourth Proportional to 144,651.30, 217,022.85 and 69,778.14

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Solution

The fourth proportional to 144,651.30, 217,022.85 and 69,778.14 is: 104,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,651.30 : 217,022.85 = 69,778.14 : x
  2. Step 2: Convert to fraction form
    144,651.30/217,022.85 = 69,778.14/x
  3. Step 3: Cross multiply
    144,651.30x = 217,022.85 × 69,778.14
  4. Step 4: Simplify right side
    144,651.30x = 15,143,450,810.50
  5. Step 5: Solve for x
    x = 15,143,450,810.50/144,651.30
  6. Step 6: Final answer
    x = 104,689.35

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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.