Home / 142,183.17-213,215.20-57,886

Finding the Fourth Proportional to 142,183.17, 213,215.20 and 57,886

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Solution

The fourth proportional to 142,183.17, 213,215.20 and 57,886 is: 86,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,183.17 : 213,215.20 = 57,886 : x
  2. Step 2: Convert to fraction form
    142,183.17/213,215.20 = 57,886/x
  3. Step 3: Cross multiply
    142,183.17x = 213,215.20 × 57,886
  4. Step 4: Simplify right side
    142,183.17x = 12,342,175,067.20
  5. Step 5: Solve for x
    x = 12,342,175,067.20/142,183.17
  6. Step 6: Final answer
    x = 86,804.75

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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.