Home / 142,246.20-213,369.30-103,078.20

Finding the Fourth Proportional to 142,246.20, 213,369.30 and 103,078.20

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Solution

The fourth proportional to 142,246.20, 213,369.30 and 103,078.20 is: 154,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,246.20 : 213,369.30 = 103,078.20 : x
  2. Step 2: Convert to fraction form
    142,246.20/213,369.30 = 103,078.20/x
  3. Step 3: Cross multiply
    142,246.20x = 213,369.30 × 103,078.20
  4. Step 4: Simplify right side
    142,246.20x = 21,993,723,379.26
  5. Step 5: Solve for x
    x = 21,993,723,379.26/142,246.20
  6. Step 6: Final answer
    x = 154,617.30

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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.