Home / 103,652.12-155,462.67-28,764.38

Finding the Fourth Proportional to 103,652.12, 155,462.67 and 28,764.38

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Solution

The fourth proportional to 103,652.12, 155,462.67 and 28,764.38 is: 43,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,652.12 : 155,462.67 = 28,764.38 : x
  2. Step 2: Convert to fraction form
    103,652.12/155,462.67 = 28,764.38/x
  3. Step 3: Cross multiply
    103,652.12x = 155,462.67 × 28,764.38
  4. Step 4: Simplify right side
    103,652.12x = 4,471,787,315.69
  5. Step 5: Solve for x
    x = 4,471,787,315.69/103,652.12
  6. Step 6: Final answer
    x = 43,142.27

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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.