Home / 143,830.11-215,776.31-55,083.61

Finding the Fourth Proportional to 143,830.11, 215,776.31 and 55,083.61

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Solution

The fourth proportional to 143,830.11, 215,776.31 and 55,083.61 is: 82,637.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,830.11 : 215,776.31 = 55,083.61 : x
  2. Step 2: Convert to fraction form
    143,830.11/215,776.31 = 55,083.61/x
  3. Step 3: Cross multiply
    143,830.11x = 215,776.31 × 55,083.61
  4. Step 4: Simplify right side
    143,830.11x = 11,885,737,292.42
  5. Step 5: Solve for x
    x = 11,885,737,292.42/143,830.11
  6. Step 6: Final answer
    x = 82,637.34

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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.