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Finding the Fourth Proportional to 143,300.77, 214,623.33 and 68,473.51

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Solution

The fourth proportional to 143,300.77, 214,623.33 and 68,473.51 is: 102,553.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,300.77 : 214,623.33 = 68,473.51 : x
  2. Step 2: Convert to fraction form
    143,300.77/214,623.33 = 68,473.51/x
  3. Step 3: Cross multiply
    143,300.77x = 214,623.33 × 68,473.51
  4. Step 4: Simplify right side
    143,300.77x = 14,696,012,732.99
  5. Step 5: Solve for x
    x = 14,696,012,732.99/143,300.77
  6. Step 6: Final answer
    x = 102,553.62

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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.