Home / 103,679.16-155,601.78-53,773.56

Finding the Fourth Proportional to 103,679.16, 155,601.78 and 53,773.56

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Solution

The fourth proportional to 103,679.16, 155,601.78 and 53,773.56 is: 80,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,679.16 : 155,601.78 = 53,773.56 : x
  2. Step 2: Convert to fraction form
    103,679.16/155,601.78 = 53,773.56/x
  3. Step 3: Cross multiply
    103,679.16x = 155,601.78 × 53,773.56
  4. Step 4: Simplify right side
    103,679.16x = 8,367,261,652.94
  5. Step 5: Solve for x
    x = 8,367,261,652.94/103,679.16
  6. Step 6: Final answer
    x = 80,703.41

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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.