Home / 103,414.87-154,991.08-53,485.66

Finding the Fourth Proportional to 103,414.87, 154,991.08 and 53,485.66

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Solution

The fourth proportional to 103,414.87, 154,991.08 and 53,485.66 is: 80,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,414.87 : 154,991.08 = 53,485.66 : x
  2. Step 2: Convert to fraction form
    103,414.87/154,991.08 = 53,485.66/x
  3. Step 3: Cross multiply
    103,414.87x = 154,991.08 × 53,485.66
  4. Step 4: Simplify right side
    103,414.87x = 8,289,799,887.29
  5. Step 5: Solve for x
    x = 8,289,799,887.29/103,414.87
  6. Step 6: Final answer
    x = 80,160.62

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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.