Home / 143,724.73-215,587.11-55,005.43

Finding the Fourth Proportional to 143,724.73, 215,587.11 and 55,005.43

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Solution

The fourth proportional to 143,724.73, 215,587.11 and 55,005.43 is: 82,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,724.73 : 215,587.11 = 55,005.43 : x
  2. Step 2: Convert to fraction form
    143,724.73/215,587.11 = 55,005.43/x
  3. Step 3: Cross multiply
    143,724.73x = 215,587.11 × 55,005.43
  4. Step 4: Simplify right side
    143,724.73x = 11,858,461,688.01
  5. Step 5: Solve for x
    x = 11,858,461,688.01/143,724.73
  6. Step 6: Final answer
    x = 82,508.15

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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.