Home / 103,815.30-155,665.35-41,415.30

Finding the Fourth Proportional to 103,815.30, 155,665.35 and 41,415.30

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Solution

The fourth proportional to 103,815.30, 155,665.35 and 41,415.30 is: 62,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,815.30 : 155,665.35 = 41,415.30 : x
  2. Step 2: Convert to fraction form
    103,815.30/155,665.35 = 41,415.30/x
  3. Step 3: Cross multiply
    103,815.30x = 155,665.35 × 41,415.30
  4. Step 4: Simplify right side
    103,815.30x = 6,446,927,169.86
  5. Step 5: Solve for x
    x = 6,446,927,169.86/103,815.30
  6. Step 6: Final answer
    x = 62,099.97

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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.