Home / 103,945.80-143,443.08-58,623.24

Finding the Fourth Proportional to 103,945.80, 143,443.08 and 58,623.24

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Solution

The fourth proportional to 103,945.80, 143,443.08 and 58,623.24 is: 80,898.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,945.80 : 143,443.08 = 58,623.24 : x
  2. Step 2: Convert to fraction form
    103,945.80/143,443.08 = 58,623.24/x
  3. Step 3: Cross multiply
    103,945.80x = 143,443.08 × 58,623.24
  4. Step 4: Simplify right side
    103,945.80x = 8,409,098,105.18
  5. Step 5: Solve for x
    x = 8,409,098,105.18/103,945.80
  6. Step 6: Final answer
    x = 80,898.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.