Home / 103,930.24-143,389.72-63,601.96

Finding the Fourth Proportional to 103,930.24, 143,389.72 and 63,601.96

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Solution

The fourth proportional to 103,930.24, 143,389.72 and 63,601.96 is: 87,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,930.24 : 143,389.72 = 63,601.96 : x
  2. Step 2: Convert to fraction form
    103,930.24/143,389.72 = 63,601.96/x
  3. Step 3: Cross multiply
    103,930.24x = 143,389.72 × 63,601.96
  4. Step 4: Simplify right side
    103,930.24x = 9,119,867,235.85
  5. Step 5: Solve for x
    x = 9,119,867,235.85/103,930.24
  6. Step 6: Final answer
    x = 87,749.89

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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.