Home / 143,929.04-215,786.92-68,977.82

Finding the Fourth Proportional to 143,929.04, 215,786.92 and 68,977.82

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Solution

The fourth proportional to 143,929.04, 215,786.92 and 68,977.82 is: 103,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,929.04 : 215,786.92 = 68,977.82 : x
  2. Step 2: Convert to fraction form
    143,929.04/215,786.92 = 68,977.82/x
  3. Step 3: Cross multiply
    143,929.04x = 215,786.92 × 68,977.82
  4. Step 4: Simplify right side
    143,929.04x = 14,884,511,326.11
  5. Step 5: Solve for x
    x = 14,884,511,326.11/143,929.04
  6. Step 6: Final answer
    x = 103,415.62

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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.